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Old December 22nd, 2011, 10:59 AM   #1 (permalink)
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Default Wifi might not be the issue.. GPS might be the issue

Interesting thread at XDA of people reporting real GPS issues..

Once guy even said, he was told shockingly "Lol. I just called Asus csr. They told me that prime Gps does not work without a working wifi. I made the csr ask tech again and she said yes the prime needs wifi connection for gps to work if true... #asustransformerprime= #epicfail for me."

can you imagine if that is true in what truly valuable scenario do you need GPS and have a wifi connection?

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Old December 22nd, 2011, 11:49 AM   #2 (permalink)
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I call BS on the whole GPS scare here. Maybe a few are bad, I don't know. I just unboxed mine a few minutes ago. Did the update while it was charging. Then I just had to try the GPS. I unplugged my wireless router, to make sure it wasn't being received, went outside and my Prime immediately located itself, and showed 10 satellites with the GSP Status app.

Then I powered my router back on, went outside and walked out to the street. It's about 120+ feet away. I still had usable wifi despite the walls and trees.

Now I need to force myself to leave this thing alone and let it get it's full initial battery charge!

Did I mention I love it! Thanks again Office Depot!
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Old December 22nd, 2011, 11:51 AM   #3 (permalink)
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1 more day for me and I will know myself.

Anyway, seems like there are a number of people reporting the issue, but glad you see otherwise. I will be curious if you can take it out into the car and get GPS and use maps and such?
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Old December 22nd, 2011, 12:38 PM   #4 (permalink)
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Thomslik,

Thanks for the quick review on gps and wifi. Glad everything is working on it. This helps all of us who have to wait a few more weeks to get ours.
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Old December 22nd, 2011, 12:56 PM   #5 (permalink)
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I hope everyone is waiting long enough for their first fix with the GPS before they start freaking out that it's broke. Time To First Fix (TTFF) can take a long time when the thing is first starting up: Time to first fix - Wikipedia, the free encyclopedia

Given the impatience to get these things, I'm really thinking folks are not waiting long enough to get the almanac downloaded an actually get their first fix. And if they're moving around while they're waiting it can take even longer. I'm not saying it's going to take 15 minutes like the above article says (they may be using aGPS as noted in the article), but it doesn't usuallly happen in 30 seconds the first time. If you're lucky and happen to flip it on and get the almanac right away, you may get a fix quickly. Then again, you may not. I've seen TTFF as long as 6 or 7 minutes on a few of my devices. After the first one it's usually fairly quick if you use it regularly.

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Old December 22nd, 2011, 02:41 PM   #6 (permalink)
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Originally Posted by Gatman View Post
I hope everyone is waiting long enough for their first fix with the GPS before they start freaking out that it's broke. Time To First Fix (TTFF) can take a long time when the thing is first starting up: Time to first fix - Wikipedia, the free encyclopedia

Given the impatience to get these things, I'm really thinking folks are not waiting long enough to get the almanac downloaded an actually get their first fix. And if they're moving around while they're waiting it can take even longer. I'm not saying it's going to take 15 minutes like the above article says (they may be using aGPS as noted in the article), but it doesn't usuallly happen in 30 seconds the first time. If you're lucky and happen to flip it on and get the almanac right away, you may get a fix quickly. Then again, you may not. I've seen TTFF as long as 6 or 7 minutes on a few of my devices. After the first one it's usually fairly quick if you use it regularly.

~Gary
Agreed. It takes my cell phone up to 5 minutes sometimes to get a fix. People are just so impatient these days. Everything is instant gratification. Slow down people.
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Old December 22nd, 2011, 10:45 PM   #7 (permalink)
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Are you getting 20m accuracy like I am?
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Old December 23rd, 2011, 10:18 AM   #8 (permalink)
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you guys with 5 min acquires times on your cell phone?? man, my OG Droid is nearly instantly
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Old December 23rd, 2011, 09:52 PM   #9 (permalink)
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Are you getting 20m accuracy like I am?

That sounds like wifi, since that is what Maps says, even with GPS off on my Flyer and View.
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Old December 23rd, 2011, 09:59 PM   #10 (permalink)
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I call BS on the whole GPS scare here. Maybe a few are bad, I don't know. I just unboxed mine a few minutes ago. Did the update while it was charging. Then I just had to try the GPS. I unplugged my wireless router, to make sure it wasn't being received, went outside and my Prime immediately located itself, and showed 10 satellites with the GSP Status app.

Then I powered my router back on, went outside and walked out to the street. It's about 120+ feet away. I still had usable wifi despite the walls and trees.

Now I need to force myself to leave this thing alone and let it get it's full initial battery charge!

Did I mention I love it! Thanks again Office Depot!

That is a lot better than the Trans 1, but Anandtech stated Prime is significantly weaker than the Trans 1. Weird.
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Old December 25th, 2011, 04:09 PM   #11 (permalink)
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I hope everyone is waiting long enough for their first fix with the GPS before they start freaking out that it's broke. Time To First Fix (TTFF) can take a long time when the thing is first starting up: Time to first fix - Wikipedia, the free encyclopedia
I just tried mine outside. Used GPS Essentials and gave it about 10 minutes. Was able to see 1 or 2 satellites but never able to get a fix. At least it was able to see a couple. Maybe that at least means it works. I'll try it again later. If there is a problem hopefully it is software and not hardware.
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Old December 25th, 2011, 06:00 PM   #12 (permalink)
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I just tried mine outside. Used GPS Essentials and gave it about 10 minutes. Was able to see 1 or 2 satellites but never able to get a fix. At least it was able to see a couple. Maybe that at least means it works. I'll try it again later. If there is a problem hopefully it is software and not hardware.

Could be the same issue also impacting wifi (the all aluminum chassis).
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Old December 25th, 2011, 06:08 PM   #13 (permalink)
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Could be the same issue also impacting wifi (the all aluminum chassis).
Could be, though I'm not having any problems with wifi. I don't think I'll have much use for gps anyway but I would like it to work just in case I ever do.
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Old December 26th, 2011, 08:54 PM   #14 (permalink)
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Its a real issue guys. In my house using GPS Test my phone gets 7 locks in seconds @ 50ft accuracy & my Asus ... nothing in 5 minutes but 1 signal & no locks!
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Old December 26th, 2011, 09:03 PM   #15 (permalink)
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Hmmm. I had a garmin once that wouldn't pick up anything inside the house until I took it outside. Have you tried taking it outside?
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Old December 27th, 2011, 08:00 AM   #16 (permalink)
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Why oh why do people insist on complaining about the GPS not working indoors? Dense foliage can block a GPS signal - so imagine what walls of your house will do. As receivers and have gotten more and more sensitive over the last few years they have the ability to now work in places where they previously haven't, but that doesn't guarantee they will work indoors. Depending on what receiver is used in a device, the ability to lock in adverse conditions can vary greatly from device to device. Just because your phone can doesn't mean your Transformer will, or even that there is anything wrong with the Transformer.

I have had my Garmin Nuvi take 15 minutes on a couple occasions (when it had been off for an extended period and was also moved to a completely new location across country). Acquiring the current almanac can take a while, and moving around while you're doing can make it worse (and the Garmin is a dedicated GPS device with a sensitive receiver). Once it completely flaked out and showed me on the other side of the country for over an hour until I shut it off and restarted it. Things like this can happen to any device.

If you've not sat outside for 15 minutes (sitting still) for your first lock, you should try again. If that doesn't work you should reboot the device and try again. If you're not willing to do that you are just wasting your time and everyone else's complaining it doesn't work, because you really haven't tried. I'm fairly certain for $499/$599 we're not getting the most sensitive or top-of-the-line GPS in these things.

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Old December 27th, 2011, 09:22 AM   #17 (permalink)
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I am no tech guru, but I do remember when I had my HTC Touch Pro (windows phone), there was an app that you could download the latest gps info to get a better lock. Maybe this is the reason they say you have to have wifi on to get a lock. Once its updated and downloads the satellite info for your location it will work fine without WiFi.

Imagine if it was turned on in Tiawan during assembly it would have gotten the satellites for that side of the earth, you will obviously be looking for different satellites over here, but it doesn't know that.

Again this is all speculation, but it made sense in my head.
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Old December 27th, 2011, 10:17 AM   #18 (permalink)
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I am no tech guru, but I do remember when I had my HTC Touch Pro (windows phone), there was an app that you could download the latest gps info to get a better lock. Maybe this is the reason they say you have to have wifi on to get a lock. Once its updated and downloads the satellite info for your location it will work fine without WiFi.

Imagine if it was turned on in Tiawan during assembly it would have gotten the satellites for that side of the earth, you will obviously be looking for different satellites over here, but it doesn't know that.

Again this is all speculation, but it made sense in my head.
You are absolutely correct. If you move it more than about 300 miles, it can cause it to go flakey. Here are a couple quotes from a website I was just reading about this very problem (here - I realize this is for a stand-alone gps, but the theory of how they work is the same):

"In order for GPS receivers to function, they need to know three critical pieces of information. These are the current date and time, the receiver's location on the earth and the location of the satellites in orbit. When a GPS receiver has these three pieces of information, it performs a normal startup procedure, called a "warm start," and will typically begin displaying a position in less than one minute. When a GPS receiver does not have this information, however, it must perform a much slower "cold start" routine that can take up to 20 minutes. The wide variance between the warm and cold starts highlights the significant challenge that a GPS receiver faces when it must search the entire available sky for a GPS signal that is not much stronger than the overall background noise."

Another important piece of info:

"GPS receivers use two different search methodologies, depending on whether they are performing a warm or cold start. Warm starts are much quicker than cold starts because the GPS receiver knows exactly where to look in the sky to acquire a satellite signal. Sometimes, however, GPS receivers get confused and think they have enough information about the current date and time, their location on the earth, and the location of the satellites in orbit to perform a warm start. When some of the data is wrong, the GPS receiver may never acquire any satellites because it is using a narrow search routine in the wrong area of the sky. If your GPS receiver does not acquire any satellites within 5 to 10 minutes, force it into its cold start routine, which will cause it to search the entire sky. Check the documentation specific to your GPS model to see how to reset it, or clear its memory."

Lastly, from here, "The receiver may also have to be initialized if it was moved several hundred miles since its last use." I think it's safe to assume these have moved several hundred miles since their last use, if they were every initialized previously at all.

Turning wifi off like many folks over at XDA are saying to do is likely only exacerbating the situation. A-GPS uses wifi or other data to get a better guesstimate of your location to speed up your initial lock. Also, sitting on your couch trying to do a cold start is just plain silly - get a clear view of the sky. Good, strong signals from a clear sky will help get an initial lock. I had to stop reading the thread over at XDA because it was so littered with inaccuracies and people jumping to conclusions I just couldn't take it any longer.

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Old December 27th, 2011, 11:33 AM   #19 (permalink)
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To some of you poo pooing the issue. If your phone, inside, can pickup and lock in on 6-7 satellites in seconds and yet the Prime, in 15-20 minutes sees 1 and locks to nothing... really, is there anything more to say?

My phones didnt need reinitialized when I bought them and I am sure they came from a ways away.

Also, in that 28 page thread with 15,000+ views - what does that tell you - I was one of the first to mention AGPS. But even then, inside or outside, aluminum case or not matters very little. When you do a 1 for 1 side by side test with your phone - and mine is an OG Droid that uses AGPS - and you get this disparity in results and your test is done at the same time in same location.. there is clearly an issue.
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Old December 27th, 2011, 11:43 AM   #20 (permalink)
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To some of you poo pooing the issue. If your phone, inside, can pickup and lock in on 6-7 satellites in seconds and yet the Prime, in 15-20 minutes sees 1 and locks to nothing... really, is there anything more to say?

My phones didnt need reinitialized when I bought them and I am sure they came from a ways away.

Also, in that 28 page thread with 15,000+ views - what does that tell you - I was one of the first to mention AGPS. But even then, inside or outside, aluminum case or not matters very little. When you do a 1 for 1 side by side test with your phone - and mine is an OG Droid that uses AGPS - and you get this disparity in results and your test is done at the same time in same location.. there is clearly an issue.
I guess you didn't read anything I posted about how GPS works. So you're the expert. We can all rest easy now. You don't know what brand of receiver is in your prime, or what sensitivity it has, and you're comparing it to your phone, for which you don't have that information either. That's a complete waste of time.

You said you sat on your couch for 5 minutes and didn't get a lock. Well, that's no big surprise to me, but you refuse to acknowledge any of the information I posted above about how GPS works or why it works the way it does.

I saw the post at XDA, and as I noted above I had to stop reading it because it was so full of misinformation it was ridiculous.
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Old December 27th, 2011, 11:52 AM   #21 (permalink)
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Oh wait...15,000 people viewed that thread...it must be true!
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Old December 27th, 2011, 12:11 PM   #22 (permalink)
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Oh wait...15,000 people viewed that thread...it must be true!
Are you for real? Don't you think their is a correlation between views and number of pages and number of posts and thus the topic at hand? If a thread as 3 pages and 200 views and one has 30 pages and over 15000 views, it is not meaningful? Geez.. ignorance reigns supreme here.
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Old December 27th, 2011, 12:24 PM   #23 (permalink)
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I guess you didn't read anything I posted about how GPS works. So you're the expert. We can all rest easy now. You don't know what brand of receiver is in your prime, or what sensitivity it has, and you're comparing it to your phone, for which you don't have that information either. That's a complete waste of time.

You said you sat on your couch for 5 minutes and didn't get a lock. Well, that's no big surprise to me, but you refuse to acknowledge any of the information I posted above about how GPS works or why it works the way it does.

I saw the post at XDA, and as I noted above I had to stop reading it because it was so full of misinformation it was ridiculous.
It is not about misinformation.. it is much simpler than that but you want to take the issue in a different direction and waste time talking technicalities as though the issue is not there. You can dismiss it all you want, but riddle me this..

A 2 year old phone - using AGPS - can get 6-7 satellites locked in seconds. A sate of the art tablet using AGPS can get 0 locks in 20 minutes in the same location as the phone. A simple, easy, clear cut question. How? Why?

Answer = flaw in the Asus tablet. Period.

And BTW, I dont need you to tell me how GPS and AGPS works - especially when you just cut and pasted someone else's info I already knew. So really, you didn't offer anything. I am offering real world personal user experience. Explain it?
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Old December 27th, 2011, 12:52 PM   #24 (permalink)
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Let's keep it civil in here please
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Old December 27th, 2011, 01:24 PM   #25 (permalink)
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Reading through Gatman's response, I wonder if the fact that the cell phone positions itself due to cellular towers, so thus the GPS "knows" where it is, versus the Prime needing this initialization period since it only has WiFi to assist in location. Just a thought. Wish I had my Prime so that I could test this theory.
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Old December 27th, 2011, 01:41 PM   #26 (permalink)
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But this "cold start" routine is not working for me or anyone else.

There are apps you can use to clear out old and download newer AGPS info to account for changes in it's location - thus a cold start as it starts seeking anew. I, like many, tried them and they result in no positive change. Wifi on - to help acquisitions a la A(ssisted)GPS - and newer AGPS info.. still no acquisitions for me and most everyone else reporting in. I am into 40+ minutes on 1 test, zero locks. In middle of street where I still have WiFi.. 1 satellite found and no locks. Again, older cell phone in same situation in same location (but which never ever had to have an AGPS update done to it)... instant satellites find and locked in.

Explaining how GPS and AGPS work is great for a general understanding for people, but when you can replicate tests, across people, across USA locations, and get the same results and then compare that against other devices (like cell phones) - a crystal clear picture emerges.
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Old December 27th, 2011, 01:43 PM   #27 (permalink)
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Reading through Gatman's response, I wonder if the fact that the cell phone positions itself due to cellular towers, so thus the GPS "knows" where it is, versus the Prime needing this initialization period since it only has WiFi to assist in location. Just a thought. Wish I had my Prime so that I could test this theory.
Your theory probably is correct, although I'm not an expert, comparing a cell phone with cell service to a tablet with wifi only, it's hard to put them next to each other and draw a conclusion as to why the tablet doesn't get a solid GPS lock right away. It's comparing apples to oranges, imo.

Compare 2 identical tablets, one with cell service and the other with wifi only capabilities, then, you may draw a comparison. If they both are in the same environment, with the same variables, one with and one without cell service, my guess is that the wifi only tablet will take longer to get a solid GPS lock considering it doesn't have tower coordinates to pinpoint its location.

But comparing a phone with cell service to a tablet with wifi-only capabilities, doesn't hold water, imo
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Old December 27th, 2011, 01:49 PM   #28 (permalink)
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But this "cold start" routine is not working for me or anyone else.
That is just plain, not true. I have seen posts from folks that got a lock. You say I'm ignoring facts, and then you make a statement like that and expect me to take your comments seriously. I posted a link about TTFF (time to first fix) a while ago. This is a known aspect of GPS use.

~Gary
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Old December 27th, 2011, 02:07 PM   #29 (permalink)
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That is just plain, not true. I have seen posts from folks that got a lock. You say I'm ignoring facts, and then you make a statement like that and expect me to take your comments seriously. I posted a link about TTFF (time to first fix) a while ago. This is a known aspect of GPS use.

~Gary
Look...

Sure, some people will get a lock. But I, like many, don't want a lock, I want 6-7 locks. As well, I, like many, do not want to wait 20 minutes to get a lock and only get 1 when you do. And BTW, some of those very few people that got that lock after a cold start AGPS update, came back later and reported they lost it as the Prime seems to reset it's GPS data as time goes on. Or did you stop reading before then?

A person has a reasonable expectation to pull this unit out of the box, turn on GPS and get 6-7 satellites locked in and not have to go through hoops (reboot, reset, cold start data, call tech support) to figure put why it is not. Our cells phones handle this most basic of tasks and even in Wifi only mode.

Now, the reason I made that statement you quoted is because... I own one of these. So, I am not just chatting on. I own it, I have tried it, I have read all 30 pages of XDA to get informed, I know what it is suppose to do and what it is really doing. So, you took the quote out of context as it was to indicate I have tried things (reset AGPS data, reboot, wait 10-20-30-40 minutes outside - since you think that matters) and read things (every post in that 30 pages) and it still does not work for me and most everyone on XDA reporting in so I have first hand experience and it mirrors that of a vast majority that use tech sites like this an XDA.

I am just not sure why your so bucking the fact people are reporting the issue and upset by it? It is true, it is replicated, it is an issue. Not sure why your pushing so hard in the opposite direction. This is not rocket science - reboot, cold restart your AGPS info, reset the Prime and nothing works = an issue! It is so simple really, but your just not wanting to jump on board something not 1 guy is reporting, but that many all over the USA report. I just don't get what you angle is.
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Old December 27th, 2011, 03:57 PM   #30 (permalink)
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Your theory probably is correct, although I'm not an expert, comparing a cell phone with cell service to a tablet with wifi only, it's hard to put them next to each other and draw a conclusion as to why the tablet doesn't get a solid GPS lock right away. It's comparing apples to oranges, imo.
Did you just use the word "apples" on an Android site?

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Look...

Sure, some people will get a lock. But I, like many, don't want a lock, I want 6-7 locks. As well, I, like many, do not want to wait 20 minutes to get a lock and only get 1 when you do. And BTW, some of those very few people that got that lock after a cold start AGPS update, came back later and reported they lost it as the Prime seems to reset it's GPS data as time goes on. Or did you stop reading before then?

A person has a reasonable expectation to pull this unit out of the box, turn on GPS and get 6-7 satellites locked in and not have to go through hoops (reboot, reset, cold start data, call tech support) to figure put why it is not. Our cells phones handle this most basic of tasks and even in Wifi only mode.

Now, the reason I made that statement you quoted is because... I own one of these. So, I am not just chatting on. I own it, I have tried it, I have read all 30 pages of XDA to get informed, I know what it is suppose to do and what it is really doing. So, you took the quote out of context as it was to indicate I have tried things (reset AGPS data, reboot, wait 10-20-30-40 minutes outside - since you think that matters) and read things (every post in that 30 pages) and it still does not work for me and most everyone on XDA reporting in so I have first hand experience and it mirrors that of a vast majority that use tech sites like this an XDA.

I am just not sure why your so bucking the fact people are reporting the issue and upset by it? It is true, it is replicated, it is an issue. Not sure why your pushing so hard in the opposite direction. This is not rocket science - reboot, cold restart your AGPS info, reset the Prime and nothing works = an issue! It is so simple really, but your just not wanting to jump on board something not 1 guy is reporting, but that many all over the USA report. I just don't get what you angle is.
Lock-N-Load, as much as I love my Samsung Galaxy S2 Epic 4G Touch (whew, I'm tired now after typing that) I can tell you that mine is slow locking on to satellites. Once locked I'm good, but it can take 10 minutes easily sometimes. Nevertheless, if you're really standing in the middle of your street and still in WiFi range, you certainly seem to have a GPS issue, but at the same time you've dispelled any poor WiFi connections threads.
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Old December 27th, 2011, 04:11 PM   #31 (permalink)
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I have no angle here other than to try and let folks know some information about GPS and give them things to try so they can hopefully get a fix with their Prime. And just to be clear, when I referred to a lock, I meant a GPS fix. Seeing one or two satellites isn't a "lock" or a fix, and you don't get 8 "locks" when you can see 8 satellites. I was referring to a fix, which is multiple satellites in view and your position calculated. It's possible to have 4 satellites in view and still not get a fix under certain conditions. IIRC, 4 is the minimum to get a fix, but even then if they aren't satellites that are in a good configuration, you still won't get a fix.

It's frustrating to know how GPS works and see so many people having problems getting a fix that are doing silly things (I'm not specifically referring to you here, so please don't infer condemnation where it wasn't intended). That thread over at XDA has gobs of bad info and advice, and it is likely making the situation worse than it really is. That's my only angle here....to try and help folks understand how gps works a little better by providing the information above.

I've used GPS for many years now, and have read up on the technical side of how it works. I provided that information above to try and make folks realize you can't sit on the couch and expect a TTFF of 2 minutes, and just because your phone does it doesn't mean another GPS will. There are so many factors that come into play - what receiver and how sensitive is it, etc., etc. But when you make a comment that says "10-20-30-40 minutes outside - since you think that matters" after I posted multiple explanations about how TTFF works and that a clear line of site matters, you clearly don't want help or to understand.

You may well have a defective unit; others may have one, too. I certainly hope after all the wait that is not the case! But if no one takes the time to clearly try to do things that will help obtain a fix and then document it for others it's pretty impossible to know what the real problem is.

Just sayin.
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Old December 27th, 2011, 04:13 PM   #32 (permalink)
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Just road for over 2 hours. Put tablet outside on power. Came back.. ZERO satellites.

bummer
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Old December 27th, 2011, 05:11 PM   #33 (permalink)
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Just road for over 2 hours. Put tablet outside on power. Came back.. ZERO satellites.

bummer
Can you get a screen shot from GPS Test showing your satellites? I'd be curious to see what is showing up to try and get it working for you.

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Old December 27th, 2011, 08:42 PM   #34 (permalink)
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I have no angle here other than to try and let folks know some information about GPS and give them things to try so they can hopefully get a fix with their Prime. And just to be clear, when I referred to a lock, I meant a GPS fix. Seeing one or two satellites isn't a "lock" or a fix, and you don't get 8 "locks" when you can see 8 satellites. I was referring to a fix, which is multiple satellites in view and your position calculated. It's possible to have 4 satellites in view and still not get a fix under certain conditions. IIRC, 4 is the minimum to get a fix, but even then if they aren't satellites that are in a good configuration, you still won't get a fix.

It's frustrating to know how GPS works and see so many people having problems getting a fix that are doing silly things (I'm not specifically referring to you here, so please don't infer condemnation where it wasn't intended). That thread over at XDA has gobs of bad info and advice, and it is likely making the situation worse than it really is. That's my only angle here....to try and help folks understand how gps works a little better by providing the information above.

I've used GPS for many years now, and have read up on the technical side of how it works. I provided that information above to try and make folks realize you can't sit on the couch and expect a TTFF of 2 minutes, and just because your phone does it doesn't mean another GPS will. There are so many factors that come into play - what receiver and how sensitive is it, etc., etc. But when you make a comment that says "10-20-30-40 minutes outside - since you think that matters" after I posted multiple explanations about how TTFF works and that a clear line of site matters, you clearly don't want help or to understand.

You may well have a defective unit; others may have one, too. I certainly hope after all the wait that is not the case! But if no one takes the time to clearly try to do things that will help obtain a fix and then document it for others it's pretty impossible to know what the real problem is.

Just sayin.

Considering GPS use should be a transparent function, seems the GPS has problems if it does not simply work

Simply bringing up the need for assistance or tech speak suggests symptoms of a real problem.

IMO, both the GPS and WIFI are just as bad or worse than the infamously bad Acer 500.

Like the Acer, seems too much aluminum and no signal windows. Style over function.
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Old January 12th, 2012, 04:19 PM   #35 (permalink)
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I guess some in this thread are eating/choking on their words now about this issue..
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Old January 12th, 2012, 05:42 PM   #36 (permalink)
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I hope everyone is waiting long enough for their first fix with the GPS before they start freaking out that it's broke. Time To First Fix (TTFF) can take a long time when the thing is first starting up: Time to first fix - Wikipedia, the free encyclopedia

Given the impatience to get these things, I'm really thinking folks are not waiting long enough to get the almanac downloaded an actually get their first fix. And if they're moving around while they're waiting it can take even longer. I'm not saying it's going to take 15 minutes like the above article says (they may be using aGPS as noted in the article), but it doesn't usuallly happen in 30 seconds the first time. If you're lucky and happen to flip it on and get the almanac right away, you may get a fix quickly. Then again, you may not. I've seen TTFF as long as 6 or 7 minutes on a few of my devices. After the first one it's usually fairly quick if you use it regularly.

~Gary
This is a point I keep forgetting.
I have a Vizio 8 inch tablet and it took over 7 min to get its first lock with wifi support. After reading this post I unplugged my router and started the GPS on it and without wifi it took 1 min. So what you say has some validity to it.
However, even Asus has admitted that the TP has a GPS problem. And one member said that so long as you call in and complain about your GPS not working, they will fix it? However they have figured on doing it. Time will tell if this fix works. I just think that if people are paying right at 600.00 for this tablet. Everything and I mean everything should work 100%.
After some time, if it looks like Asus has resolved this problem on production models and everything else is still working properly I will pick one up.
But for the price I want everything working.
Oh and ICS should come on it out of the box not through a OTA update. Just me being picky.

For me this whole situation is akin to buying a brand new Lexus but oops!! the steering doesn't work, you will have to file a complaint before we think about fixing the steering problem and if we get enough complaints we might fix it at the factory.
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