Weak Wi-Fi after upgrade to JB - Sony Xperia S, Acro S, Ion

Hello. When I bought my Xperia S it was with GBm then I upgradet it to ICS and the Wi-Fi signal was strong enough, I hadn't any complaints. However, after I upgraded to JB (6.2.B.1.96) the Wi-Fi signal strenght started dropping, sometimes it even REJECTS to connect. It's not a router problem, I can guarantee. Can someone help me? Thanks in advance!

I have the same problem but mine little different I have 2 routers in my house if I connect to my belkin the WiFi is flawless but when I connect t my netgear it keeps droping the WiFi idk?
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The problam is in all xperia s
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Related

Wireless signal strength

Hi folks
Signal strength of my GN compared to my laptop is bad. Laptop and gn positioned near each other and connected to same wireless network.
Any suggestions?
Sent from my Galaxy Nexus using xda premium
Werner De Mulder said:
Hi folks
Signal strength of my GN compared to my laptop is bad. Laptop and gn positioned near each other and connected to same wireless network.
Any suggestions?
Sent from my Galaxy Nexus using xda premium
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Click to collapse
It will never be the same, the laptop has more power to draw on for the Wi-Fi radio so has better signal. Bigger antenna too probably.

Jb wifi

Does it cause any issues with the WiFi or is it just my internet ?
Sent from my Jelly Beaned GNexus
ray3andrei said:
Does it cause any issues with the WiFi or is it just my internet ?
Sent from my Jelly Beaned GNexus
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There's a fix for the WiFi in Verizon Dev section.
Sent from my Galaxy Nexus using xda premium
Huh...my port has no wifi issues at all on Verizon.
no wifi issues on bigxie's rom
I have the gsm version.. so it may be my router
Sent from my Jelly Beaned GNexus
I had issues connecting with DHCP. Create a static IP and it connects fine.
WiFi seems rather weak on mine but that is all, connects fine at home and at work.
No issues for me at all and i won't be surprised if Google will select this build as a final JB release.
WiFi is broken on some flashes and zips, especially the OTA zip. Koush's ZIP is good though, I had WiFi problems with the OTA.
Sent from my Galaxy Nexus using xda app-developers app
Yeah Wifi problems when screen is off. No notifications nada. When screen turns on all is back to normal.

Weak wifi signal at home????

Hello everyone, Im trying to figure out why my wifi signal is almost non-existent when im downstairs in my house. My router is right next to my ps3 and tv so im always downstairs but i always have a weak signal most times or no bars at all. But when im upstairs i have full bars. Any idea on what i can do to improve this?? I have comcast internet and a Belkin N600 dual band N+ router.
I found this and hope it helps. There is a known issue with the Wi-Fi connectivity.
http://forum.xda-developers.com/showthread.php?t=1862888
Sent from my SGH-T999 using xda premium
justice26 said:
I found this and how it helps. There is a known issue with the Wi-Fi connectivity.
http://forum.xda-developers.com/showthread.php?t=1862888
Sent from my SGH-T999 using xda premium
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thx
Thanks but hadn't really helped much.

Wifi poor i747 bell

Hi all
Are there any users who've used a different radio to improve the poor wifi signal on the galaxy s3?
There was a lengthy thread about this issue but haven't read or found a solution. My wifi drops off consistently and standing beside my router, I only ever get 2bars of signal strength.
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perry_henis said:
Hi all
Are there any users who've used a different radio to improve the poor wifi signal on the galaxy s3?
There was a lengthy thread about this issue but haven't read or found a solution. My wifi drops off consistently and standing beside my router, I only ever get 2bars of signal strength.
Sent from my SGH-I747M using xda app-developers app
Click to expand...
Click to collapse
Up until today there was only one radio that would work. Today all the major Canadian carriers released an update and part of that was an updated modem(radio). Check for updates on your phone or through KIES. I haven't seen any pre-rooted versions yet but give it time.....
Thanks, as far as radios I am curios which radios we can flash on our s3's as per region or carrier
perry_henis said:
Hi all
Are there any users who've used a different radio to improve the poor wifi signal on the galaxy s3?
There was a lengthy thread about this issue but haven't read or found a solution. My wifi drops off consistently and standing beside my router, I only ever get 2bars of signal strength.
Sent from my SGH-I747M using xda app-developers app
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Click to collapse
The radio has nothing to do with WiFi, the kernel does. My Bell S3 picks up WiFi just fine. It might be your router that is the issue? Have you tried resetting it?
Sent from my SGH-I747M using xda premium
thegregulator said:
The radio has nothing to do with WiFi, the kernel does. My Bell S3 picks up WiFi just fine. It might be your router that is the issue? Have you tried resetting it?
Sent from my SGH-I747M using xda premium
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Router connects well to tablet, laptop and sonos. I literally have to be in a 3' radius to get 3-4 bars of signal strength.
Speedtest was about 3Mbps down. Brutal. I posted in another post but I'll do it again here. Samsung is taking my phone back since it's within the one year period. Service time frame 2-5 weeks. They emailed me a UPS prepaid shipping to print out to ship it to Ontario for repair or replacement.

[Q] Extremely weak wifi

Hi guys.
I don't know if its my phone or if this is the way the phone is meant to be, I have an extremely weak wifi signal. I am literally right next door to my router and I only get 3/4 bars for signal strength. As soon as I go up to the second floor, I get nothing at all unless I'm directly above my router. This is extremely frustrating at the moment. I decided to lurk around the forum to see if installing a custom rom would help and I ended up installing Jedi Invasion 2; it did not help at all.
It's just so frustrating that I have to use my mobile internet when I'm in bed instead of using my home internet. I don't understand this at all. Why is it so weak? Does anyone else have this problem?
Thank you.
Im with you on this......im staying tuned..
Sent from my SAMSUNG-SGH-I747 using xda premium
Have you tried updating your modem to the latest version that was just released?
My modem is perfectly fine. I just dont understand how my old crappy blackberry had a better and stronger connection than my s3.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I found the Wi-Fi performance increased a fair bit when I upgraded to 4.1.1. I can go a fair ways in my house before dropping bars. Wish I had run WiFi Analyzer before the upgrade so that I could actually compare RSSI.
Depends on the router freq. 2.4ghz and 5ghz. 5ghz can cause crappy WiFi strength issues. Change the settings around to 2.4 only and see what happens.
i727-ucle2-SkY IcS
My router does not support dual band. Like I said earlier, my blackberry has a stable connection while my s3 struggles.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
I had the same problem in 4.0.4 ICS but now on 4.1 JB it is working perfect. Before on ICS I had like 3-4 bars when I was 2ft away from the router. Now on JB I have full 5 stable bars no less with higher distance.
ShaolinMilk said:
My modem is perfectly fine. I just dont understand how my old crappy blackberry had a better and stronger connection than my s3.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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The modem he is talking about is a radio for the phone. Not the modem that connects you to the internet through your ISP.
Oh. Im still relatively new to this device so I never knew. How do I update the modem?
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ShaolinMilk said:
Oh. Im still relatively new to this device so I never knew. How do I update the modem?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Well first thing your going to have to do is root the phone before you can update your modem.
Sent from my SGH-I747 using Tapatalk 2
Att is rolling out jelly bean now through kies. Id just do that before you hit the modding route. Jelly Bean will update you too there latest and greatest modem and boot loader updates. Then root it and never look back
i727-ucle2-SkY IcS
So I went ahead and installed the latest modem. It made my signal even worst somehow. How do I restore back to the one I had?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
ShaolinMilk said:
So I went ahead and installed the latest modem. It made my signal even worst somehow. How do I restore back to the one I had?
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
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Download it and flash it.
Im not exactly sure which modem it was.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
There's only three modems for each carrier. Try them all.
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