wifi speeds? Only seeing ~3MB/s (25 Mbps)

jkc120 · April 27th, 2012, 03:05 AM

I'm curious just how fast everyone's wifi is on their galaxy nexus?

I've been doing some testing and despite being connected at 5GHz 802.11n speeds, I'm only getting 3MB/s (~25 Mbps). I was expecting faster than that. I haven't yet tried with 802.11g instead, but I guess I'll give that a shot. There are no other 802.11n routers nearby (according to some wifi scanners) and I tried changing the 5GHz channel but with no change in speeds.

So is 3MB/s all I can expect, or does my phone have a problem?

BTW, I confirmed these speeds with iperf (ruling out the SD card being the bottleneck) as well as with wget -O /dev/null from the terminal. So it's not being slowed down by writing to the SD card or anything like that.

Curious what speeds others are seeing over wifi. By comparison, my mac laptop is capable of 15MB/s (120 Mbps) or faster over the same wifi connection.

AntimonyER · April 27th, 2012, 05:48 AM

I only get about half that on my connection, of course I have SLOW internet, so my computer is not much better.

ncguy2 · April 27th, 2012, 07:08 AM

My wifi is awful. I have a 30mb internet connection and I'm lucky to get 5-10mb down with the GN. The speedtest graph looks like mountains with lots of ragged peaks and valleys on download and smooth across on upload. Turning off bluetooth helps a bit. I used to be able to connect at 5ghz and that helped a lot but after the last OTA the GN will no longer see the 5ghz signal. Bottom line is the GN wifi has a lot of issues and is very sensitive to the particular router and a/p you happen to be using

Tim K · April 27th, 2012, 07:36 AM

There's nothing wrong with my GN. I've never had a Wifi issue at all. Sitting at my desk....
My desktop pulls 15.5 Mbps hardwired.
My Tablet pulled 14.8, 14.9, 15.4 Mbps via WiFi.
My GN pulled 15.2, 14.8, 14.8 Mbps via Wifi

I've always, always, always found WiFi issues were caused by the router. Some routers just don't play nice with some devices.

jkc120 · April 27th, 2012, 12:15 PM

Quote:

Originally Posted by AntimonyER

I only get about half that on my connection, of course I have SLOW internet, so my computer is not much better.

This is localized testing, not out to the internet, so I'm not being bottlenecked by my ISP, though in this case with speed boost on Comcast I normally see initial (like first 15-20 seconds) bursts up near 100 Mbps on my laptop, so even with speedtest.net it shouldn't be a bottleneck...

OfTheDamned · April 27th, 2012, 12:29 PM

I just ran a speedtest on mine and I'm getting 24 Mbps down via Wifi.

jkc120 · April 27th, 2012, 12:31 PM

Quote:

Originally Posted by OfTheDamned

I just ran a speedtest on mine and I'm getting 24 Mbps down via Wifi.

Ok, so perhaps this is the nominal speed for the nexus' wifi. Still 2x or more faster than my old dinc's wifi, it just seemed "slow" for 802.11n

OfTheDamned · April 27th, 2012, 02:08 PM

Quote:

Originally Posted by jkc120

Ok, so perhaps this is the nominal speed for the nexus' wifi. Still 2x or more faster than my old dinc's wifi, it just seemed "slow" for 802.11n

I've noticed, for me anyway, that N tends to run a little slower in speed tests than G does. G reminds me of 5 Ghz in many ways as the speed always seemed wide open where N (2.4 Ghz) seems to be a little more reserved, but able to hit faster speeds when in use.

You may also want to check your other network connections. I know that I've had computers running updates in the house and it has slowed me down quite a bit.

jkc120 · April 27th, 2012, 02:13 PM

Quote:

Originally Posted by OfTheDamned

I've noticed, for me anyway, that N tends to run a little slower in speed tests than G does. G reminds me of 5 Ghz in many ways as the speed always seemed wide open where N (2.4 Ghz) seems to be a little more reserved, but able to hit faster speeds when in use.

You may also want to check your other network connections. I know that I've had computers running updates in the house and it has slowed me down quite a bit.

Nothing else was using the wifi at the time and I tested with iPerf not just with speedtest.net and http xfers. So it's not a sdcard bottleneck. But it sounds like 3MB/s is pretty good for the Nexus. I wasn't sure if others were seeing close to true-N speeds, but as I understand it the Nexus only does N @ 65 Mbps anyway, right? Still, I was expecting it to be faster than 25 Mbps. With iPerf, I normally see about 80% of the link speed on ethernet, so even figuring 60% that'd be more like 35Mbps not 25Mbps.

ncguy2 · April 28th, 2012, 06:06 AM

Quote:

Originally Posted by jkc120

. But it sounds like 3MB/s is pretty good for the Nexus.

I wish I could get anywhere close to that. I think its a matter of the GN playing nice with your specific network gear. What are you using for a router and AP?

Dubbin1 · April 28th, 2012, 07:17 AM

16.3 no complaints here.

byrds8 · April 28th, 2012, 07:57 AM

Mine pulled 13 down and 15 up. Weird though cause its backwards. lol

Demache · April 28th, 2012, 12:23 PM

Quote:

Originally Posted by ncguy2

I wish I could get anywhere close to that. I think its a matter of the GN playing nice with your specific network gear. What are you using for a router and AP?

Could also be if there is a lot of network noise in the area. If your running on the same or near the same channel as another wireless network, you will get drastically lower speeds especially since the radio on the Nexus is going to be much weaker than say a laptop. If either the AP or Nexus can't overpower those other networks you get lots of data they have to keep re-sending meaning slower speeds.

jkc120 · April 28th, 2012, 06:00 PM

Quote:

Originally Posted by ncguy2

I wish I could get anywhere close to that. I think its a matter of the GN playing nice with your specific network gear. What are you using for a router and AP?

First generation apple airport extreme with 802.11abgn.

ncguy2 · April 28th, 2012, 07:04 PM

Quote:

Originally Posted by Demache

Could also be if there is a lot of network noise in the area. If your running on the same or near the same channel as another wireless network, you will get drastically lower speeds especially since the radio on the Nexus is going to be much weaker than say a laptop. If either the AP or Nexus can't overpower those other networks you get lots of data they have to keep re-sending meaning slower speeds.

I've scanned with wifi explorer and there doesn't appear to be any interference.

castaway · April 30th, 2012, 04:21 AM

i have exactly same issues with my Galaxy nexus as on this video.

Galaxy Nexus WiFi download speed problem - YouTube

I try change every setting i can but no effect..

802.11g i get 23Mbps speed in speedtest
802.11n it is 5Mbps. (sometime i cant measure becouse wifi reconnect, droping, "lagging" conection - like connected but do nothing while browsing)

Using Belkin N+ router.
Im using AOKP milestone5 all stock but it has same on non rooted stock phone.
This is what i get on notebook with 802.11n only

BTW here is thread about peoples experiencing it same too

If anybody had same issue or have some idea how to fix it please let me know im seraching for reason or fix too long time

. Thanks

skinnhc · April 30th, 2012, 01:14 PM

There's an app on the Play store that addresses the issue of slow Wi-Fi speeds when the screen is off. Take a look:
http://forum.xda-developers.com/showthread.php?t=1625705