[Q] Samsung Galaxy S3 Wifi problem - AT&T, Rogers, Bell, Telus Samsung Galaxy S III

Hi guys I bought two galaxy s3 two days ago I'm loving the handset but there is something wrong with my wifi when I'm about 5 meters away from my router i'm only get about 1 to 2 bars of signal,sometimes I loose the wifi connection completely. I tried turning off wifi power save mode but I still have the problem is this a hardware issue ??

are you having the issue with BOTH of your s3's?
does it do this with other routers? at other locations? how old is your router? routers start to bug out after 3-5 years...

Known issue... go to find out what ghz ur router is then go to advanced and check either 2.4 or 5 wifi. Is a kernel issue..use another one like ktoonz
Sent from my SGH-I747 using xda premium

TRusselo said:
are you having the issue with BOTH of your s3's?
does it do this with other routers? at other locations? how old is your router? routers start to bug out after 3-5 years...
Click to expand...
Click to collapse
Yes, it's the same with both phones i have tried it at my girlfriends house as well and it's still the same problem but the she has the same SMC router from rogers as me the router is only about a year old, on my iphone 4 i'm getting full wifi signal might this be a setting on the phone ?

JB calhoun said:
Known issue... go to find out what ghz ur router is then go to advanced and check either 2.4 or 5 wifi. Is a kernel issue..use another one like ktoonz
Sent from my SGH-I747 using xda premium
Click to expand...
Click to collapse
i have a SMCD3GN router i checked on the wireless advanced setting i have no option to change between 2.4 or 5, how i find the frequency of my router ?

Related

[Q] Really low speeds on wifi

When I try to use my wifi connection at home its really really slow. Sometimes it just loads part of the websites or some other it doesnt load at all and I have to refresh it several times so it loads. I also have an iphone and a laptop which dont have this problem at all. Theyre working perfectly fine with my wifi connection.
This only happens with wifi, on 3g it works fine. I havent been able to try more wifi networks to see if this only happens with mine
Are you rooted? Could certainly be a kernel issue.
Sent from my Galaxy Nexus using XDA
AZ FadeOut said:
Are you rooted? Could certainly be a kernel issue.
Sent from my Galaxy Nexus using XDA
Click to expand...
Click to collapse
Yes its rooted. This is the kernel shown on the about menu
3.0.8-gda6252b
[email protected] #1
SMP PREEMPT Fri Apr 13 11:35:09 PDT 2012
To me it shouts out kernel issue. I've had graphical errors on stock where it shows I don't have any signal but everything still pulls up nice and fast. I would reccomend a new rom and or kernel
Sent from my Galaxy Nexus using XDA
It also could be a WiFi issue. I was having WiFi issues with my GNex also that I thought was the phone until I started tweaking my Router settings. Some devices are more forgiving to certain routers. In addition some devices Roam to different AP's much better than others.
I have 2 WiFi AP's in my house to span covereage across 2900sqft. I found that my WiFi was just conflicting with each other causing issues with speed and connection so this is what I did.
My Modem is a TWC Wireless Modem - WiFi turned off.
Router 1 Linksys E4200 is Bridged to TWC Modem it is dual band so I have the 5ghz band set MyHomeAP in mixed mode with a 40Mhz Spread, using 36 as the Channel. The 2.4Ghz band is set to MyHomeAP-N in N only mode with a 40mhz Spread and 11 as the channel. I need a seperate SSID here because it was causing conflicts and I needed a 2.4ghz connection upstairs for my Transformer Prime Tab since it does not support 5ghz radios.
Router 2 Netgear WNR300L with DD-WRT loaded is downstairs on the other side of the house. It is a 2.4 ghz router which I have set to MyHomeAP with a 20mhz spread set to channel 1. This allows my devices that are 5ghz compatible to Roam between each AP without conflicts.
So with all that I am now getting 45 mbs WiFi when I am upstairs and connected to the Linksys and 21 mbps downstairs when I am connected to the Netgear downstairs. The Tab is getting a consistent 15mbps on each router which is acceptable for me. This is an improvement from getting 3mbps anywhere in the else regardless of the closeness to the router or the device being used. I'm now able to maximizesmy use of the WideBand service which gets about 52 mbps on a wired connection most of the time.
The GN has lots of issues with different network gear and a lot of it can't be solved by tweaking. Seems like I've heard the most success stories with netgear. I'm using ubee and trendnet and my wifi isn't great. I get between 5 and 20 mbps and its choppy with a lot of disconnects.
NCguy said:
The GN has lots of issues with different network gear and a lot of it can't be solved by tweaking. Seems like I've heard the most success stories with netgear. I'm using ubee and trendnet and my wifi isn't great. I get between 5 and 20 mbps and its choppy with a lot of disconnects.
Click to expand...
Click to collapse
You always have to be careful using multiple Wireless routers in the house, because if they are not setup right you will get consistent disconnects and low speeds. Same thing was happening to me until I really digged in and configured my multiple routers correctly. Check my previous post on how I solved my router issues.
Are you getting good signal when your connected to your wifi
HeCareth said:
You always have to be careful using multiple Wireless routers in the house, because if they are not setup right you will get consistent disconnects and low speeds. Same thing was happening to me until I really digged in and configured my multiple routers correctly. Check my previous post on how I solved my router issues.
Click to expand...
Click to collapse
Just one router, the time warner ubee docsis 3.0 modem/router. The rest are trendnet APs at 1,6,11. All with same ssid and security. No interference as checked with wifi analyzer. The wifi just sucks. Not much more you can say except try different gear which shouldn't be necessary. All of my laptops etc work great.
I tried my gnex on other wifi network and it worked well. I tried it again on mine with negative results. Idk what could be wrong, all other devices i have, 2 laptops and 1 iphone work well
survivor_evil said:
I tried my gnex on other wifi network and it worked well. I tried it again on mine with negative results. Idk what could be wrong, all other devices i have, 2 laptops and 1 iphone work well
Click to expand...
Click to collapse
What's wrong is the GNs wifi doesn't play nice with all network gear as it should. Just curious, what is your router and APs?
NCguy said:
What's wrong is the GNs wifi doesn't play nice with all network gear as it should. Just curious, what is your router and APs?
Click to expand...
Click to collapse
Ok this is my wifi configuration. what could the problem be? My nexus still works like crap on my wifi network
survivor_evil said:
Ok this is my wifi configuration. what could the problem be? My nexus still works like crap on my wifi network
Click to expand...
Click to collapse
Is there a reason you are not using "all" foe your basic and transmission rates. I have dd-wrt also and that is set to all for me.
Sent from my Galaxy Nexus using xda premium
HeCareth said:
Is there a reason you are not using "all" foe your basic and transmission rates. I have dd-wrt also and that is set to all for me.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
nothing special i just reset the router to see if that helped but its the same
survivor_evil said:
Ok this is my wifi configuration. what could the problem be? My nexus still works like crap on my wifi network
Click to expand...
Click to collapse
Your basic rate is set to 1-2mbs, so don't expect more than that. Change it to 54mbs or whatever the max is and see if it helps.
Sent from my HP Touchpad running ICS
EP2008 said:
Your basic rate is set to 1-2mbs, so don't expect more than that. Change it to 54mbs or whatever the max is and see if it helps.
Sent from my HP Touchpad running ICS
Click to expand...
Click to collapse
Even if i change it to 10mb it.doesnt make a difference. As i said before. I have 2 laptops and 1 iphone and all of them work perfectly except the nexus

5GHz WiFi not working, well sorta....

Wondering if anyone else is having issues connecting to a 5ghz network? I wasn't able to get it working, wouldn't even show up in available networks. That was stock out of the box, and after flashing a couple ROMs. I'm using slimbean now and am able to connect, but I have to turn WiFi on/off several times on the n7 before it shows up and connects. My s 3 connects no problem.
And I've tried all the standard troubleshooting on the router. Even changed some settings on the 5GHz band.
So if someone could double check for me that would be great!
Sent from my Nexus 7 using Tapatalk 4
5ghz works great for me. Reception is the best I've ever gotten on that band. Currently on stock, but it's worked in CM10 too
The 5 ghz didn't show up for me either. Had to manually enter the SSID and it connected right away.
Sent from my Nexus 7 using xda premium
On the first boot it didn't show my 5GHz WiFi, but after I connected it to my 2.4GHz, it immediately downloaded an update and rebooted itself. When it came back up, it saw my 5GHz.
Sent from my SGH-T889V using xda premium
Mine didn't at first either, but after update/reboot no problem. Now connecting at 150meg on 5ghz.
Sent from my Nexus 7 using Tapatalk 4
Still hit or miss for me. Sometimes its connected when I reboot. Usually I have to toggle WiFi on/off 2-3 times.
Sent from my Nexus 7 using Tapatalk 4
My Nexus 7 connects to my 5ghz router band all the time. I think it actually prefers it. I'm using it right now.
Sent from my Nexus 7 using xda premium
Well I think I have it working. I gave the n7 a static address and now after a half dozen reboots its auto connecting every time. I tried changing channels on the router. Tried 20/40 MHz channel width. Ticked on/off all the options on n7 WiFi settings. Nothing worked. Then I set static address on my tablet and router and like I said so far so good.
I'll update if there are any other issues because doing a search showed a lot of other devices having this issue. But none of the results recommended setting a static address. Maybe I got lucky. I could use my 2.4GHz network reliably but I want full network speed since I only have the 16 GB model and do a lot of folder syncs to keep my SD storage free.
Edit: scratch that. Worked half dozen times in a row. Rebooted after I wrote this and it didn't connect.
Sent from my Nexus 7 using Tapatalk 4
During initial setup i was not able to connect to my 5ghz but i was able to connect to my 2.4ghz. After setup was complete i was able to go in and switch it manually to the 5ghz network. If i power the device off and turn it back on it would not connect to my 5ghz or my 2.4ghz. I then went into wifi advanced settings and switched to 5ghz only and it connected immediately to the network and hasn't lost it since. This was true before and after the update, i am stock, unlocked and rooted. I also do not broadcast my ssid.
mr1ncred1ble said:
During initial setup i was not able to connect to my 5ghz but i was able to connect to my 2.4ghz. After setup was complete i was able to go in and switch it manually to the 5ghz network. If i power the device off and turn it back on it would not connect to my 5ghz or my 2.4ghz. I then went into wifi advanced settings and switched to 5ghz only and it connected immediately to the network and hasn't lost it since. This was true before and after the update, i am stock, unlocked and rooted. I also do not broadcast my ssid.
Click to expand...
Click to collapse
If I am connected to 5ghz and go in advanced and select 5ghz only, it disconnects me from WiFi. It will still show my 5ghz network in range with good signal but if I now try to connect..it does nothing. Keep clicking connect and nothing happens. Then go back and put frequency on auto and the 5ghz disappears. I then have to toggle WiFi 4-6 times before it connects again to the 5ghz.
Strange.
Sent from my Nexus 7 using Tapatalk 4
I had the same problem at first too. Here's what solved it for me: set 5ghz frequency to 20mhz instead of auto, change the channel from auto to any number you want, 5ghz will most likely be completely clear in your area so just choose any channel. After doing that it should see the 5ghz network every time and connect automatically.
Sent from my Nexus 7 using Tapatalk 4
Same issue here. But i have to restart my device. Is it hardware or software you guys think?
ikon8 said:
I had the same problem at first too. Here's what solved it for me: set 5ghz frequency to 20mhz instead of auto, change the channel from auto to any number you want, 5ghz will most likely be completely clear in your area so just choose any channel. After doing that it should see the 5ghz network every time and connect automatically.
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
I've tried that. One of the first things I did.
mystycs said:
Same issue here. But i have to restart my device. Is it hardware or software you guys think?
Click to expand...
Click to collapse
I'm not sure. Seems like software to me because once its connected it stays connected. And the signal range is really good. Better WiFi than any phone I've ever had. Better than my laptop too. My s3 has no problems connecting. Even with all the router settings I've tweaked its never had an issue connecting with the s3.
Are you able to connect?
In another thread someone noticed his WiFi settings were set to Europe. He said he hadn't changed them and that he was fresh on stock (his first time booted). Double check your settings if you're still having issues.
Settings | WiFi | advanced | WiFi region code.
Mine was also set to Europe as well for some reason. If your router is setup to use a channel not available in Europe this would cause the problems described here.
Sent from my Nexus 7
EmuZombie said:
In another thread someone noticed his WiFi settings were set to Europe. He said he hadn't changed them and that he was fresh on stock (his first time booted). Double check your settings if you're still having issues.
Settings | WiFi | advanced | WiFi region code.
Mine was also set to Europe as well for some reason. If your router is setup to use a channel not available in Europe this would cause the problems described here.
Sent from my Nexus 7
Click to expand...
Click to collapse
Thanks for the tip. Unfortunately it doesn't help. I've tried several channels on the router too.
Sent from my Nexus 7 using Tapatalk 4
I contacted google about this today they said theyll look into it. So maybe if we let them know theyll know its a issue that is bothering us.
mystycs said:
I contacted google about this today they said theyll look into it. So maybe if we let them know theyll know its a issue that is bothering us.
Click to expand...
Click to collapse
Could you put a Link up where you contacted them? Thanks!
Sent from my Nexus 7 using Tapatalk 4
highfigh said:
Could you put a Link up where you contacted them? Thanks!
Sent from my Nexus 7 using Tapatalk 4
Click to expand...
Click to collapse
I called them here
https://support.google.com/nexus/7/
1-855-836-3987 (855-83-NEXUS)
Update..powered on after a few hours and it did not connect to 5ghz. Went in to the advanced settings and switched from 5ghz to 2.4 and back again and connected right away. Will try the region code, to see if it helps.
update to the update: flashed vanir 4.3.081213 and wifi connected to my 5ghz right away and has continued working through two reboots so far. On stock rooted 4.3 i had to toggle wifi frequency to get it to connect after every reboot.
Sent from my Nexus 7 using XDA Premium HD app
OK guys, I think I have as real solid lead on this bug. I'll update with some info a little later, I want to test this some more. But for now I'll say that I made some changes and I have had zero disconnects or problems connecting while toggling or after reboot. And I mean 100% connection rate after 50 toggles and a dozen reboots.
Till I can get the info up, one question for you guys having the same issue. Do you have multiple routers in your network and/or custom firmware on your router?
Sent from my Nexus 7 using Tapatalk 4

Wifi issue , how to fix ? Please help

I got a n900t a few day ago, but the wifi has problem , disconnect ...ect
so can it be fix with n9005 rom ?
Or i have to wait for the 4.4 kitkat from t-mobile ?
Thank you
Is this happening on every network or one specific network?
hlcm151 said:
I got a n900t a few day ago, but the wifi has problem , disconnect ...ect
so can it be fix with n9005 rom ?
Or i have to wait for the 4.4 kitkat from t-mobile ?
Thank you
Click to expand...
Click to collapse
What error message
TWEAKED 2.0 NOTE 3
BACARDILIMON said:
What error message
TWEAKED 2.0 NOTE 3
Click to expand...
Click to collapse
it's showed me , unstable connection and droped out often ...
hlcm151 said:
it's showed me , unstable connection and droped out often ...
Click to expand...
Click to collapse
How stable is ur connection. Test it and see
TWEAKED 2.0 NOTE 3
BACARDILIMON said:
How stable is ur connection. Test it and see
TWEAKED 2.0 NOTE 3
Click to expand...
Click to collapse
I was having issues with my WIFI also. It wouldn't connect on 2.4 GHz but would on 5 GHz. The performance wasn't great and I would get the connection isn't stable message a lot. I tried a bunch of things on my router and finally just did a factory reset on the router. I can now connect of both 2.4 GHz and 5 GHz. My connection speed has also improved dramatically. I didn't think it was a router issue since the Note 3 WIFI issues are pretty well known to be a problem. In my case, doing a factory reset on the router helped my problem a lot. For reference it is an ASUS RT-AC66R
I used the app WIFI Analyzer from the play store to monitor the signal strengths. Since doing the factory reset on the router, I only see the connection is unstable message very rarely.
Chris
chipworkz said:
I was having issues with my WIFI also. It wouldn't connect on 2.4 GHz but would on 5 GHz. The performance wasn't great and I would get the connection isn't stable message a lot. I tried a bunch of things on my router and finally just did a factory reset on the router. I can now connect of both 2.4 GHz and 5 GHz. My connection speed has also improved dramatically. I didn't think it was a router issue since the Note 3 WIFI issues are pretty well known to be a problem. In my case, doing a factory reset on the router helped my problem a lot. For reference it is an ASUS RT-AC66R
I used the app WIFI Analyzer from the play store to monitor the signal strengths. Since doing the factory reset on the router, I only see the connection is unstable message very rarely.
Chris
Click to expand...
Click to collapse
I had same issues I thought phone was junk but it was my router. So I upgraded and set my Wi-Fi channel manually and not I am without Wi-Fi issues
TWEAKED 2.0 NOTE 3
You can turn off the option in the wifi settings that lets the phone auto disconnect from wifi if it thinks the wifi signal is weak or unstable. I sit 10 feet from my wifi router and it used to go back to the cell signal randomly. I disabled the auto switch option and no issue since. My wifi at home is very strong so I think its a bugged setting or something.
"Your network connection is unstable, so we in our smart thoughts have decided to disable it. Kiss my Gritts ". Ho Hummmmm
click dont show this option again
Wifi
If you are sure your WiFi is good, then go to WiFi settings,
1) Switch OFF Auto network switch
2) Keep Wi-Fi on during sleep: Always
This is a known bug that tmobile had ignored from the beginning. ... all note 3 phones had it. ..tmobile is the only one left with it. ..
Sent from my SM-N900T using XDA Premium 4 mobile app
djtheraven said:
This is a known bug that tmobile had ignored from the beginning. ... all note 3 phones had it. ..tmobile is the only one left with it. ..
Sent from my SM-N900T using XDA Premium 4 mobile app
Click to expand...
Click to collapse
Man, wish I had known about this... My Nexus 5 and 7 (and office iPhone 5S) all have excellent Wifi connection at my home.
I bought Note 3 to use the Wi-Fi calling feature and this caused me to missed multiple phone calls. Apparently, when the Note 3 is on Wi-Fi calling, it sorts of "disable" or reduce the cellular radio signal - zero bar shown on my Note 3 - all calls and SMS go through Wi-Fi. When the Wi-fi drop, it takes sometimes for the Note to establish cellular connection and that's when I missed the call.
Not to mention I am browsing happily or streaming Netflix and BAM.. wi-fi dropped and everything stopped.
If the Kit Kat upgrade fixes this issue AND not bring anymore problem (as evident from numerous threads), I would have upgraded to Kit Kat already.
Dammit, over the course of browsing for an hour, the wi-fi disconnect over 5 times.
What the hell!?

[Q] Poor wifi signal

Sooo I've had my M8 for nearly a month now and I love the thing. However, I notice that I've been having some issues with the M8 not being able to detect or connect to my home and office's wifi. My laptop and my fiance's Nexus 5 can detect our home wifi network with full strength.
Interestingly, the closer I get to my router, the stronger the signal gets, but the moment I move maybe 20 feet away into another room, the wifi cuts out or gets very weak. I understand that distance is a factor, but I feel that my M8 should be able to connect to my router in the next room, especially when other devices can do so with no problem.
I think it's also worth noting that this was not always an issue. This only started happening recently - the only software upgrade that I did was the Verizon push that installed right out the box. I have not made any changes to my wifi network at home or work.
I've tried a couple of things with no resolution, including;
Resetting my router (power cycling)
Restarting my phone
Forgetting both wifi networks and manually re-adding them
Changing my wifi direct name
Turning on airplane mode, turning off my wifi, turning off airplane mode then turning on wifi (this was a suggested method for the M7 that I saw on another forum)
I did some Googling and didnt find much, so maybe I just have a lemon, but I did see that wifi connectivity was an issue with the M7.
Any ideas or suggestions would be greatly appreciated!
I'm having the exact same problem getting over 20Mbps over Ethernet but then 0.25Mbps on my M8 over WiFi even when close to router
Have you guys played around with your routers settings?
What signal is your router on, wireless b,g,n,ac?
Is it throwing mixed frequency? (2.4ghz or 5ghz or both)
Go to WiFi settings in the phone, then advanced, then it will probably say "auto".
Try setting it on only 2.4ghz or only 5ghz see if that helps.
Sent from my One M8 using Tapatalk
Tried that and my router is just b and g suppose upgrading to an n or ac router would sort it
Sent from my HTC One_M8 using XDA Free mobile app
JoeMidd09 said:
Tried that and my router is just b and g suppose upgrading to an n or ac router would sort it
Sent from my HTC One_M8 using XDA Free mobile app
Click to expand...
Click to collapse
Yup lol. B and G are long outdated. Need N so your speeds can fly...
Sent from my One M8 using Tapatalk
kennypow3rs said:
Try setting it on only 2.4ghz or only 5ghz see if that helps.
Click to expand...
Click to collapse
This. Worked for me...and on my old Nexus 4. I think it is a KitKat thing.

5GHz Wifi

My phone refuses to connect to my 5GHz wifi, it says authentication error. Anyone else with this problem?
No issues on my Net Gear Nighthawk
Sent from my Galaxy Note 4 on Verizon unlimited!
note 4 5ghz wifi not working
I have same problem my note 4 verizon is not connecting to my 5ghz band but working fine with 2.5ghz
i have belkin ac1300 router.
asjassar said:
I have same problem my note 4 verizon is not connecting to my 5ghz band but working fine with 2.5ghz
i have belkin ac1300 router.
Click to expand...
Click to collapse
So it's not just me. Hmm.
Yes i think its aome software problem because it worked for me first time only for a 10 mins and then it never connected.
I even tried hard reset but not successfull.
So I tried connecting to it again, and I noticed it keeps losing sight of the wifi connection. It will show my 5GHz network out of range, and then try to connect, then show it out of range for a bit again.
I found a solution go to wifi settings and go to menu and advanced and turn off smart network switch and always allow scanning. And then reset ur modem and router and it should work .
It worked for me and now my 5ghz is working fine.
Mine has worked since I got the phone. With the authentication error, are you positive you've entered the correct key? With the weak signal, have you tried a different channel, maybe some interference going on???
Sent from my SM-N910V using XDA Free mobile app
5 works ok with my asus router and speed went from 13mp/s to 29mp/s ....
fillyo said:
No issues on my Net Gear Nighthawk
Sent from my Galaxy Note 4 on Verizon unlimited!
Click to expand...
Click to collapse
asjassar said:
I found a solution go to wifi settings and go to menu and advanced and turn off smart network switch and always allow scanning. And then reset ur modem and router and it should work .
It worked for me and now my 5ghz is working fine.
Click to expand...
Click to collapse
Didn't do anything for me.
mr_cj said:
Mine has worked since I got the phone. With the authentication error, are you positive you've entered the correct key? With the weak signal, have you tried a different channel, maybe some interference going on???
Sent from my SM-N910V using XDA Free mobile app
Click to expand...
Click to collapse
Yup I'm sure, it's the same password as the 2.4GHz network. Besides that, it works for my laptop and tablet perfectly fine.
I reset my modem and router again and now it worked. Guess it just took some motivation lol.
On 2.4GHz I got like 15-25mbps on my wifi.
Here's 5GHz:
Wish Verizon's LTE wasn't pathetic compared to the competition, especially given how expensive they are.

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