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[Q] Bad WiFi Performance?

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By caveman999, Senior Member on 22nd June 2012, 02:20 AM
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I just got my S3 today and it has been great so far save for one issue. I seem to be experiencing really bad WiFi performance. I ran a speed test using the speedtest.net app on my iPhone 4 and got around 8 megabits per second down. However, when I ran the same test on my S3, I got about 1 megabit per second down consistently between numerous tests.

I don't have this issue while using LTE, which makes me think that it is a problem with the WiFi antenna. Is anyone else experiencing this issue?

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22nd June 2012, 05:56 AM |#2  
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Mine runs perfect on both 2.4ghz and 5ghz bands through wifi.

Getting 30Mbits down and 22Mbits up.
22nd June 2012, 06:04 AM |#3  
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does this happen on when connected to any wifi? or just particular one?
22nd June 2012, 06:06 AM |#4  
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Make sure your phone is not on Power Save mode.
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22nd June 2012, 01:43 PM |#5  
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Quote:
Originally Posted by caveman999

I just got my S3 today and it has been great so far save for one issue. I seem to be experiencing really bad WiFi performance. I ran a speed test using the speedtest.net app on my iPhone 4 and got around 8 megabits per second down. However, when I ran the same test on my S3, I got about 1 megabit per second down consistently between numerous tests.

I don't have this issue while using LTE, which makes me think that it is a problem with the WiFi antenna. Is anyone else experiencing this issue?

Thanks

Try forcing the WIFI to 2.4GHZ and see if that improves things
22nd June 2012, 11:46 PM |#6  
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Quote:
Originally Posted by TranceMission18

Mine runs perfect on both 2.4ghz and 5ghz bands through wifi.

Getting 30Mbits down and 22Mbits up.

Well, I have tested and yes you can get great speeds via the wifi, however something is quite wrong with it too, see my bug post in this subforum.

[IMG]
http://www.speedtest.net/android/199926501.png[/IMG]

Sent from my SAMSUNG-SGH-I747 using xda premium
22nd June 2012, 11:55 PM |#7  
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I have my wifi forced to 5GHz and just now at work I got 49ms ping 33449kbps down and 38990kbps up to a server that is ~200 miles away. Seems to be working fine to me :)
23rd June 2012, 12:32 AM |#8  
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I have the same issue. It's not as fast as my s2 on WiFi.also sometimes it loses signal and the WiFi turns off by itself and then on. It's really weird

sent from my GALAXY SIII
23rd June 2012, 01:06 AM |#9  
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Thanks for all the suggestions. It might have just been a temporary thing because I wiped the cache on my phone using the default recovery, rebooted the phone a few times and now its fine.

I'll keep testing it to check if this issue comes back, but ad of now I'm just glad that it is working now.

Sent from my SAMSUNG-SGH-I747 using XDA
24th June 2012, 04:17 AM |#10  
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Quote:
Originally Posted by mehdi_s82

Make sure your phone is not on Power Save mode.

That made a HUGE difference for me. From 5mbit/s to 50mbit/s downstream. THANK YOU.
24th June 2012, 04:26 AM |#11  
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I've had issues also with it "re-initiating wifi" after waking, even though set to keep wifi always... feel like this is truly a bug. Dropping wifi frequently...

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