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Old June 24th, 2010, 04:27 AM   #1 (permalink)
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Default Wifi in Galaxy S

Hi

I have to say that Android is giving me the worst experience of any phone I've had. I'm using a Samsung Galaxy S with 2.1 and, while the hardware is excellent (nice camera btw), the software is just so bad.

My current issue is that wifi isn't being used unless my 3g connection completely disappears. Not 0 bars, but the red no-entry sign that appears when the phone just cant find the provider. Only then will it use wifi. I've tried new wifi APs, changing the channels, changing the AP mode (B/G/N etc), changing encryption types (AES etc). Nothing makes a difference.

I wouldn't mind too much but reception here is terrible so apps stop uploading, things slow down.

Any ideas why this might be? I can't imagine it's meant to happen.

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Old June 24th, 2010, 05:02 AM   #2 (permalink)
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no, it shouldnt do that, the only thing i can think of is to go into wi fi settings -> menubutton -> advanced -> wi fi sleep policy and check what its set to.
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Old June 24th, 2010, 05:49 AM   #3 (permalink)
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It was set to stop the wifi when the screen goes blank. I've set it to never stop the wifi. It will kill the battery but lets hope it solves the issue.
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Old June 24th, 2010, 07:07 AM   #4 (permalink)
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Actually it tends to spare the battery, since the phone isn't constantly searching for network signal. My last few phones (Galaxy S, Desire, HD2) have all been better for battery life on constant WiFi.
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Old June 25th, 2010, 02:07 AM   #5 (permalink)
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Actually it tends to spare the battery, since the phone isn't constantly searching for network signal. My last few phones (Galaxy S, Desire, HD2) have all been better for battery life on constant WiFi.
That's strange as I find it works the opposite way.

I tried it last night and noticed the battery at 94%
This morning only 6hrs later I switched it on and it read 75%

Previous nightly consumption is much less when set to stop the wifi.
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Old June 26th, 2010, 02:09 AM   #6 (permalink)
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Last night I put it back to stopping the wifi when the screen goes blank.
Before switching off, like the previous night I first killed off all running programs and checked the screen... it showed 72%.
5hrs later I woke up, clicked the Home button to turn on the screen and checked the battery once more.. It read 70%.

So only 2% in 5hrs laying idle is good enough for me.

I'm happy to try the test again if you wish.
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Old June 26th, 2010, 05:17 PM   #7 (permalink)
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My Galaxy i7500 is better off using WiFi when all day at home, than 3G. WiFi saves battery!)
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Old June 27th, 2010, 10:39 PM   #8 (permalink)
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oliverm,
my wife has the same phone. she just got it late last week. she's having the same issues. i'm in south korea. believe it or not,,,i'm sitting here in samsung's tech center waiting with my wife. i'll keep you updated as to the problem of this wifi issue as soon as i get some answers.
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Old June 27th, 2010, 11:33 PM   #9 (permalink)
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Just talked to the tech. They don't know. Its to early since the phone was just released. We have to wait 2weeks to see if there is similar issues here in korea. Wife an i are going back to sketch to see if we swap it for another galaxy s.
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Old June 28th, 2010, 09:16 AM   #10 (permalink)
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I am hijacking this thread...got the galaxy s yesterday, had it connected to the wifi at home with no issues, but today when I tried connecting, it couldn't detect the ssid. I hide my ssid, so thinking that as the problem, I unhid it and voila! it works again...is this the norm? Galaxy S can't detect hidden SSIDs?
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Old June 29th, 2010, 08:54 AM   #11 (permalink)
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my wi fi is no good. Just constantly droppign in and out for me even with sleep off.

I've downloaded wifi fixer app and it puts notifications in whenever a problem is detected, there is heaps.. I think this may be why my battery sucks.
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Old June 30th, 2010, 08:35 AM   #12 (permalink)
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Thanks Noose. Interesting to know that I'm not alone. Keep me informd with anything you hear.

I've also found that it refuses to show the wifi icon sometimes when moving between previously connected wifi networks. The wifi networks just dont appear in the list. Stop and start the wifi feature in the Galaxy S and the wifi networks appear again.

Wifi reception is also really poor. The phone will show 1 or 2 bars perhaps for any wifi network when another iphone or laptop next to it will show a full set of bars.
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Old July 18th, 2010, 08:01 AM   #13 (permalink)
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All - there is a problem with the GT-i9000 WiFi.

It will disconnect itself after a duration of anything from 1 to 60 mins from my experience.

Its noticed when your surfing web pages, as it will suddenly stop being available and the "web page not available" message will appear. Or perhaps your streaming internet radio or using the Media server, basicly any WiFi based comms will simply stop working as the phone turns off the WiFi chip but does not update the phone software it has done so.

Appears to be the more apps that use it simultaneously the quicker it dies. And I am using the BT home hub 2 also, but this issue happens on other access points so im not sure if it is related. But this in no way should be a problem, just means if it is related, Samsung stand a better change of find the problem.

this issue is wide spread - reported on lots of forums.

looks like it affects all Samsung gt-i9000 units.

It appears to be a driver issue with the Samsung base OS drivers in the phone. Possibly sleep policy is not operating correctly and the wifi radio is being disabled by the hardware and is not being controlled correctly by the software so the WiFI icon still appeers to indicate the phone is connected. Also the wifi signal is not being correctly reported. the signal appears to be attenuated more than it really is.

This must be reported now as top priority. The WiFoi drivers need fixing, WiFi on this phone appears to be causing all kinds of issues.

Also if this hits the press, Samsung will experience a huge PR issue on the same scale as the Iphone 4 aerial joke issue, so Samsung rep who is monitoring these threads get yourself a pay rise and bring this to the attention of the Samsung development manager ASAP.


Please Samsung fix your WiFi drivers ASAP !!!

http://forumuk.samsungmobile.com/PostsList.aspx?ThreadID=207294

http://forumuk.samsungmobile.com/PostsList.aspx?ThreadID=207308

http://forumuk.samsungmobile.com/PostsList.aspx?ForumPostID=206677

http://gorumors.com/google-nexus-one-wi-fi-connectivity-issue/2753460

http://forum.vodafone.co.uk/topic/66822-galaxy-s-wi-fi-issue/

loads of others on google search
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Old July 20th, 2010, 10:58 AM   #14 (permalink)
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galaxy s wifi issue: (not on vibrant)

Wi-Fi problem with Samsung Galaxy S (but not with vibrant?) | steve's alternative recursion
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Old July 21st, 2010, 10:34 AM   #15 (permalink)
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Im also having terrible issues with my captivate galaxy s. Seems to be an issue while connecting to my cisco WAP4410N at work, specifically. The wifis run all day long on my old dlink router.

Im noting some very strange issues, here are the facts:
I get the page cannot be displayed error in the browser.
I can access public sites through their IP address.
I can ping any public IP address.
I can ping any private IP address on the same subnet as the access point (10.10.2.x).
I cannot ping private IPs on a different subnet (10.10.3.x)
DNS resides on a different IP subnet, which is why I cannot browse.
The router (juniper ssg20) has no record of any sessions to a private IP address on another subnet, however it will show all sessions from the phone to public IPs.

I wonder if android is not honoring the subnet mask, and is attempting to broadcast to any and all private IPs? The settings look fine to me in the DHCP server. Also, it works fine for all laptops and my buddys droid.

And now to really play with your mind, when i manually enter the settings, it works fine. Sadly this is a problem when I go home and am on a different private network.

Just wanted to add my findings to this thread. I hope they fix the issue quickly.
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Old July 22nd, 2010, 01:46 PM   #16 (permalink)
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Wow i just fixed it if your static ip is set to on turn it off and it works like a charm i think that's the problem hope it helps worked for me
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Old July 23rd, 2010, 03:19 AM   #17 (permalink)
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No problem with wifi but can somone answer me this. How does the phone choose between using wifi and the phone network if both are available? Obviously I want to use my cheaper (and faster) home wifi when available. - Thanks
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Old July 23rd, 2010, 03:49 AM   #18 (permalink)
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Quote:
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No problem with wifi but can somone answer me this. How does the phone choose between using wifi and the phone network if both are available? Obviously I want to use my cheaper (and faster) home wifi when available. - Thanks
By default if the phone picks up a wifi network and you have wifi on it will switch to this over 3G.
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Old July 23rd, 2010, 04:26 AM   #19 (permalink)
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Galaxys WiFi problem with me also i9000 available to connect to two wifi points one is WEP and one is not it picks up the non wep all day long no faults
however the main WEP wifi cannot connect even with the correct WEP code in
Also looking for a quick fix please Mr Samsung rest of the phone is more than OK
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Old July 23rd, 2010, 11:51 AM   #20 (permalink)
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Quote:
Originally Posted by GuitsBoy View Post
Im also having terrible issues with my captivate galaxy s. Seems to be an issue while connecting to my cisco WAP4410N at work, specifically. The wifis run all day long on my old dlink router.

Im noting some very strange issues, here are the facts:
I get the page cannot be displayed error in the browser.
I can access public sites through their IP address.
I can ping any public IP address.
I can ping any private IP address on the same subnet as the access point (10.10.2.x).
I cannot ping private IPs on a different subnet (10.10.3.x)
DNS resides on a different IP subnet, which is why I cannot browse.
The router (juniper ssg20) has no record of any sessions to a private IP address on another subnet, however it will show all sessions from the phone to public IPs.

I wonder if android is not honoring the subnet mask, and is attempting to broadcast to any and all private IPs? The settings look fine to me in the DHCP server. Also, it works fine for all laptops and my buddys droid.

And now to really play with your mind, when i manually enter the settings, it works fine. Sadly this is a problem when I go home and am on a different private network.

Just wanted to add my findings to this thread. I hope they fix the issue quickly.
I was able to verify my suspicions. When using dhcp, the network stack uses the default class a network mask for anything on a 10.x.x.x network, instead of using the dhcp supplied mask. I verified on two different access points at two different locations using net status. I hope they fix this...
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Old July 23rd, 2010, 12:23 PM   #21 (permalink)
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It's been working fine for me. I'm hoping this post doesn't kill it.
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Old July 24th, 2010, 12:54 AM   #22 (permalink)
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Quote:
Originally Posted by GuitsBoy View Post
I was able to verify my suspicions. When using dhcp, the network stack uses the default class a network mask for anything on a 10.x.x.x network, instead of using the dhcp supplied mask. I verified on two different access points at two different locations using net status. I hope they fix this...
Hopefully you can bug report this on the samsung support website so they are aware of it. I haven't read anything about this problem anywhere else (but that doesn't mean much) I just want to make sure samsung knows so they can fix it.
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Old July 24th, 2010, 05:58 AM   #23 (permalink)
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Default Cannot detect networks!

Though my wireless networks are turned on and can be detected by other systems, my Galaxy S is not detecting any of them!
Any suggestions would be helpful..
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Old July 25th, 2010, 03:27 PM   #24 (permalink)
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i am having a huge problem with my wifi on galaxy s. earlier it used to work fine stay connected for long but all of a sudden it though recognises the connection but fails to connect to it even though after verifying the connection .it shows obtaining ip address then shows connection unsuccessful .dont know whether its due to applications i installed or due to some problem with my device please help instead of android 2.1 my device has become android 0.0 heeeelllllpppppp.
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Old July 26th, 2010, 04:44 PM   #25 (permalink)
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False alarm, that's what happens if your neighbor creates an exact copy of your "work" network!
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Old July 26th, 2010, 08:02 PM   #26 (permalink)
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Hey guys I had the wifi drop issue on my galaxy s. I resolved it by switching my router to 802.11 b & g.

When my router was broadcasting in 'N' mode I would experience wifi dropping constantly on my galaxy s. Once I switched to B & G mode ONLY, this is when I wasn't getting dropped any longer.

You shouldn't have to do this to your router but at least the wifi connection stays connected and wont drop.

I think the android wifi package has issues with draft N frequency.
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Old July 27th, 2010, 08:39 AM   #27 (permalink)
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-snip-
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Old July 27th, 2010, 09:30 AM   #28 (permalink)
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Duh. Galaxy S doesn't support N.
Really? The specs Ive read state that it does. Not to mention, I routinely connect at 65MBPS with mine, well above the wireless g limit.
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Old July 27th, 2010, 09:32 AM   #29 (permalink)
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Hopefully you can bug report this on the samsung support website so they are aware of it. I haven't read anything about this problem anywhere else (but that doesn't mean much) I just want to make sure samsung knows so they can fix it.
I tried to report this to sammy, but all they did was send back a link to the bada developers site. Not really sure where to submit this but...
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Old July 28th, 2010, 01:25 AM   #30 (permalink)
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Default wifi temporary fix

There is definitely a problem with galaxy s wifi software. It randomly makes wi-fi sleep without notifying the user, hence the frequent disconnection.

The solution is to plug your device, when connected to wi-fi. While charging, it doesn't need to sleep at all, hence no disconnection.
(Cross-posting to some other thread)
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Old July 28th, 2010, 07:11 AM   #31 (permalink)
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Quote:
Originally Posted by snapper.fishes View Post
Duh. Galaxy S doesn't support N.
Actually it does support it. I think you should check the spec sheet again.

And many people in this official google code thread are reporting the wifi drop issue.
http://code.google.com/p/android/issues/detail?id=1698
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Old July 29th, 2010, 12:29 AM   #32 (permalink)
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I found something unusual in galaxy s. I found that Wifi works without disconnection in the night time, but in daytime, there is frequent disconnection.
In the night time, my wifi router is not being used by any other system, whereas in the daytime, it is being used heavily by others. Can that be a problem ?
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Old July 29th, 2010, 08:52 AM   #33 (permalink)
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My bad. I must have checked from the specs from a shady website.
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Old July 30th, 2010, 11:57 AM   #34 (permalink)
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Default My Wifi issue solved

Hi,

I have found the issue with my galaxy s wifi. If there is any other laptop using the wifi-router, then there would certainly be a problem(20s frequent disconnection).
However, once the other laptop stops using the connection, wifi is perfectly fine.

Can other people confirm whether they are also experiencing the same ?
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Old July 30th, 2010, 12:04 PM   #35 (permalink)
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Quote:
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Hi,

I have found the issue with my galaxy s wifi. If there is any other laptop using the wifi-router, then there would certainly be a problem(20s frequent disconnection).
However, once the other laptop stops using the connection, wifi is perfectly fine.

Can other people confirm whether they are also experiencing the same ?
I do find each time I use the wifi whilst the Laptop is running it works if you load an application and use the Internet just the once. However, if you try again it often just hangs or waits continually.
The only course of action is to close down wifi on the Galaxy S and then run it again.
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Old July 30th, 2010, 09:20 PM   #36 (permalink)
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Quote:
Originally Posted by GuitsBoy View Post
Im also having terrible issues with my captivate galaxy s. Seems to be an issue while connecting to my cisco WAP4410N at work, specifically. The wifis run all day long on my old dlink router.

Im noting some very strange issues, here are the facts:
I get the page cannot be displayed error in the browser.
I can access public sites through their IP address.
I can ping any public IP address.
I can ping any private IP address on the same subnet as the access point (10.10.2.x).
I cannot ping private IPs on a different subnet (10.10.3.x)
DNS resides on a different IP subnet, which is why I cannot browse.
The router (juniper ssg20) has no record of any sessions to a private IP address on another subnet, however it will show all sessions from the phone to public IPs.

I wonder if android is not honoring the subnet mask, and is attempting to broadcast to any and all private IPs? The settings look fine to me in the DHCP server. Also, it works fine for all laptops and my buddys droid.

And now to really play with your mind, when i manually enter the settings, it works fine. Sadly this is a problem when I go home and am on a different private network.

Just wanted to add my findings to this thread. I hope they fix the issue quickly.
I have the same f%#$!*g problem as well at work as well, it is VERY annoying. We have about 10 Cisco access points (I don't know what model) that all use the same SSID and are completely open. My Vibrant (T-Mobile) can connect to these just fine but I have the same symptoms you do. I have zero issues connecting to wifi at home with my old WRT54G v4 with Tomato firmware using WPA2.

I have a co-worker who bought a Captivate (AT&T) and he has the same problems as well so it isn't just my phone, so I am 99% sure it is a Galaxy S problem. We have no problems with other Android devices around the office. I know people who have the HTC Hero, HTC Evo, Nexus One, Motorola Droid, MyTouch 3G, and G1 and these phones can connect to our APs just fine. My old phone was a G1 and I used it from 1.0 firmware to 2.1 and didn't experience any problems either.

I'm curious, how did you find what your subnet mask was? I tried running ifconfig using the Terminal Emulator app and it was blank. I wonder if you need to be root to run it. I will investigate this problem more when I get back to work.
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Old July 31st, 2010, 12:36 AM   #37 (permalink)
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Galaxy S will get Froyo in next week. Bingo
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Old July 31st, 2010, 06:27 AM   #38 (permalink)
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Galaxy S will get Froyo in next week. Bingo
is this from a official samsung announcement
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Old August 1st, 2010, 12:46 AM   #39 (permalink)
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I do find each time I use the wifi whilst the Laptop is running it works if you load an application and use the Internet just the once. However, if you try again it often just hangs or waits continually.
The only course of action is to close down wifi on the Galaxy S and then run it again.
Ditto here. But when you stop the laptop, it works without any problem, otherwise same as yours. So it looks like we have pin-pointed the problem with galaxy s.
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Old August 23rd, 2010, 09:22 PM   #40 (permalink)
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I have the same problem. Connection to the internet drops in and out. I would have to turn my wifi off and on to fix.
I have noticed that every time this occurs, my ip address is something funky. This happens even if I have a static ip set up for my phone and router.

Any ideas?
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Old August 25th, 2010, 05:30 AM   #41 (permalink)
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Default Found my wi-fi problem

I hope this fixes everyone's problem

I was trying to connect my wife's new Galaxy S to our wifi and was having the same issue.

In my wireless settings on my modem (Netcomm NB6WPlus) There is a setting for "channel" I set this to 11 and the Galaxy connected immediately. Also make sure static IP is not set.

Cheers

Peter
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Old August 25th, 2010, 09:52 AM   #42 (permalink)
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I'm also having problems with wifi... the signal seems incredibly weak.. We have a wireless access point that has a strong connection, but the phone always shows the connection as weak.. what's the deal? could a firmware update fix this?
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Old August 28th, 2010, 11:38 AM   #43 (permalink)
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FIXED FOR ME NOW!!!
After trying everything all of you have posted here's what worked for me.
Unplug power from your modem and router for 15 seconds +. Then replug power (I read / heard once that it is important to replug these devices in the order they are connected: modem 1st then router)
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Old September 9th, 2010, 05:29 PM   #44 (permalink)
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Sad Samsung Galaxy S Wi-Fi issue

Same problems here. I've just about tried everything, max I can get is 30mins using combination of entering IP address etc, turning off sleep and to turn 3G off. The dropping is really irritating!

I've also had my first Galaxy S exchanged for a new handset, but second one has same issues. I know my Wi-Fi network is fine as never have an issue with any other device, and I don't think it's an Android issue, more likely bad skinning by Samsung, my HTC Desire is faultless!

We have 3 Galaxy S's at our company, all have same issue.

Dear Samsung u need to fix it and fix it damn fast, these issues have been dragging on for to long (you should have done a 2.1 update fix months ago).

It's a real shame because the Galaxy is a great bit of kit, camera is awesome, but it's let down with the numerous bugs, app lag, freezing, GPS and Wi-Fi being the most irritating!
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Old September 10th, 2010, 04:53 AM   #45 (permalink)
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Originally Posted by dwh_72 View Post
FIXED FOR ME NOW!!!
After trying everything all of you have posted here's what worked for me.
Unplug power from your modem and router for 15 seconds +. Then replug power (I read / heard once that it is important to replug these devices in the order they are connected: modem 1st then router)
This would solve only private wifi problems. You can't unplug public wifi... I can't connect to any public wifi (but one), with or without password, and I've tried many. Not even at my workplace... I've only managed so far to connect to my home wifi without problems.
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Old September 10th, 2010, 08:37 PM   #46 (permalink)
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Default Late to the party but with the same pain as the rest of you!

My brother just got his Galaxy S and when he came to my house last night and I gave him the wifi access key to my router. Today he calls me mad about the password I put on his "Internets" true story. Now after reading this I have plenty of things to try on his phone and unlock his "Internets" but I'm wondering If any of you tried removing all saved wifi connections on the phone and start from a fresh restart? Sounds like a software issue that may be patched if we squeek loud.
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Old September 11th, 2010, 03:25 PM   #47 (permalink)
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P
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Originally Posted by KillaDaBear View Post
My brother just got his Galaxy S and when he came to my house last night and I gave him the wifi access key to my router. Today he calls me mad about the password I put on his "Internets" true story. Now after reading this I have plenty of things to try on his phone and unlock his "Internets" but I'm wondering If any of you tried removing all saved wifi connections on the phone and start from a fresh restart? Sounds like a software issue that may be patched if we squeek loud.
+
Ive been making a factory reset every 4 or 5 days in order to fix the wifi issue, and I also would like to know if there is any easy way to clean the saved wifi connections.

Thanks on advance for any cooperation.
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Old September 12th, 2010, 05:06 AM   #48 (permalink)
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dnubpa,
no need to reset that much to fix the wifi issue.
* to get rid off unused wifi - go to wifi set up and hold press (2 secs) the wifi you don't want anymore, then there will be 2 options pop up:
1) forget network
2)change password
---> choose the first one, it will gone

another suggestions:
* setup your network according your operator - mine is GSM only (don't use auto detect GSM/WCDMA)

* Choose your operator manually

So far, my wifi and Phone connection just fine. Can't wait for my froyo - THEN , ALL HELL BREAK LOOSE !!! YEAAAAAHHHH
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Old October 16th, 2010, 12:57 AM   #49 (permalink)
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Wow i just fixed it if your static ip is set to on turn it off and it works like a charm i think that's the problem hope it helps worked for me
My first post on this forum is to thank you. I was getting 'web page not available' on the home page of my new galaxy, using default browser. Worked fine in Opera. I changed static IP from ON to OFF. Works great. Oddly enough, it still works after I changed static IP from OFF to ON, where it sits now.

Either way, thx.
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Old November 5th, 2010, 06:43 AM   #50 (permalink)
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Default I'm not alone=-O!

Quote:
Originally Posted by dnubpa View Post
P
+
Ive been making a factory reset every 4 or 5 days in order to fix the wifi issue, and I also would like to know if there is any easy way to clean the saved wifi connections.

Thanks on advance for any cooperation.
I have the exact problem..and ive been doing the same thing over and over again...i have been factory resetting my phone 10 times now just to access the internet through wifi.
I havent had this problem until I updated my phone to froyoX-(...

My phone can detect our router and im sure that it's not the router's fault..
whenever i click the access point, it will say "obtaining ip address " endlessly but it wont connect :’(
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