My S5 is having wifi issues - Galaxy S 5 Q&A, Help & Troubleshooting

Hey guys, about 2 days ago i started having wifi issues on my S5 and i have no idea what caused it.
We recently have been having trouble with our wifi (it being slow, connection falling away) but it's been stable for the past week.
The thing is, we have a main wifi router and one that extends the range. On my phone they both seem to disconnect every 5-10 seconds saying "trying to fix the slow connection" (or something like this) it continues to verify the IP, connect, and disconnects again after 5-10 seconds.
I have been having no issues on my Ipad and laptop so i'm afraid my galaxy s5 wifi is messed up somehow.
Anyone have any tips on what to try?
Cheers.

Smart network switch is active?

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[Q] WIFI Issue...

Hello all!
I have started having some strange wifi issues with my S4.
It seems different to the "usual" WIFI problem others are having. In their case their wifi keeps not turning on, dropping out etc.
In my case, my wifi is working and the phone keeps being connected to the WIFI; it shows up in the router devices list, i can 192.168.1.XXX the router form the S4, but there is no internet connection...
This started with the MGA firmware, and it happens when I come back home, and the phone logs back into the wifi network. Meanwhile an ipad is connected to the same WIFI net and is happily working without interruptions, which makes me believe the fault is with the S4..
After a half hour or so, the S4 suddenly is happily accessing the internet again.
I even flashed the wifi fix patch but no help....
I have a suspicion it might be a dhcp issue, but I've set the routers to assign the same ip to the S4 everytime.
Any ideas?

Wireless network performance drops when I connect my S4

Since a few days I am experiencing a very strange issue when I connect my S4 to my parents' wireless network.
Until a few days ago everything worked perfectly. My other devices still works properly and my phone worked as expected in my home network.
Now, at my parents' place, as soon as I connect my device to the network it becomes nearly unusable. For instance, pinging Google drops from 50ms to up to 2s. As soon as I disconnect my S4 the ping gets back to 50ms.
My S4 is updated with the latest firmware available. And my wireless router is a USR9108 configured with WPA2/WPA (PSK) TKIP/AES encryption.
Do you have any idea of what may be the cause of this problem?
I think it is something related to the configuration of the phone and the configuration of the router, but since it appeared suddenly and since it used to work as expected I am quite lost.

Weird WiFi Issue

Hey all,
I've had my galaxy s5 since launch and just a couple days ago started to have a weird wifi issue. Whenever my phone wifi is turned on and connected, my home wifi significantly slows down. The moment I turn my phone wifi off, the home wifi speeds up again. This is not a router issue as the same problem occurs at my girlfriend's house and my friends house. Any ideas?
I have the very same issue and after talking to Apple Care because it seemed to be a router issue (Airport Extreme), I was told it was the antenna in the phone that was faulty. This never happened on my S4 or S3. I found an app that I made a shortcut to quickly turn the wifi off, then on, thus speeding things up. (WiFi Connection Fixer *ROOT* by ZEXTR.) I sure wish this issue would resolve itself on its own. Ever find anything?
This does not happen with my S5 and home router. So presumably it's some random conflict with your router settings.
It's impossible to more than speculate on a cause or solution though since you didn't provide any details. The best you can hope for is that someone has already experienced your situation, found a solution and reads this thread.
If you described your router configuration in depth, we'd have a lot more to go on. If possible, an ethereal session or router log at least would go a long way towards elucidating the situation.
.
Fix? Maybe! (Nope...Issue back)
I THINK I might have found the fix for this weird issue. Go to Settings > WiFi > "Smart network switch" and UNcheck it. My speeds have stayed consistently high for the last two hours, where normally after only 5 minutes, they would drop from 40-50 Mbps down to 10-13 Mbps. Here's hoping!
Sorry...didn't fix it.
Another Fix That is Sticking
I turned data OFF on my SGS5 by using a widget called "Data Enabler" and WiFi speeds have been flying (45-50 Mpbs.) for over 3 hours. (Previously, WiFi speeds dropped to 5-7 Mpbs after 10-15 minutes. Obviously, when I leave home or work where WiFi is not available, I will enable data again. Hope this helps others.

[Q] SM-T537R4 Galaxy Tab 4 10.1 Wireless issues.. help :(

My SM-T537R4's (U.S. Cellular not connected though) wireless connection has been weird randomly.. I know I can't install a custom rom on this model.. Just wondering if it's a common issue with a fix or just my tablet being weird..
It's usually when I wake it.. I have to disconnect then reconnect it to my wifi in order for it to work online.. And sometimes (rarely) it's just dropped will general internet page surfing..
I've done several resets.. And it works beautifully for a few hours but then the issue kicks back in..
Help

Unstable WiFi (err_name_not_resolved)

I have the newest fw for my S5 and I have a lot of problems with WiFi. Sometimes I just get the err_name_not_resolved
In chrome and then I have to disable and enable WiFi and everything is OK again for perhaps an hour or a day... My phone also keeps getting warm and I suspect it has something to do with WiFi?!
I have tried reinstall my phone and my router is a Asus new one.
Please help. I had problems with WiFi since galaxy s3... (On different routers)

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