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Wifi shuts off

does this only happen at home? what about when you are out and about? Did you try a power cycle on the router? what router model? how many devices do you have connected.
 
It happens everywhere. I've tried powering off the router several times. It is an att uverse router, I've got the gigabit Internet. At most 4 devices but most of the time only 2. My next step was going to be factory resetting my phone.
 
I think folks are a bit too picky about this issue.

Both my Galaxy S5s, and my Note 4s ( two of them ), all drop the WiFi and then log right back in.

You must keep in mind that they are working at a very high frequency, 2.x gHz and the slightest thing that intrudes into the path of the signal will cause problems. At those frequencies, signals bounce around and you have what is called "Multi-Path" reception.

That is where the signal is transmitted from an antenna and where you are, you can hear it from 2 or more different directions.
One path may be "direct in a straight line",
one path may be a bounce or reflection from the water tower behind you,
another path maybe a bounce/reflection from the mirror on the wall next to you ( yes, the silver backing on that mirror is a reflector to radio signals just like it is to light waves)

Another path may be filtering down to you through a tunnel and bouncing all over the place.

now, it only takes a little bit of "something" to change the strength of one of those signals for it to become stronger and over-ride the one the receiver was locked onto.... a nice windy day swing the limbs on that tree over your head.... yes, the trees contain moisture in their limbs and leaves, and they will block the signals.

Or, all you need is for someone to get up and start walking around, and the signal you were locked onto disappears for a 1/2 second.... then the receiver locks onto the next strongest signal, or lacking that, it locks back onto the signal that it lost as soon as it reappears and is strong enough....

This arena is where I have worked my whole entire adult working life, and no matter how much I explain to a customer "why his damn telephone, or short wave radio" isn't "worth the powder to blow it to hell" ( his words, not mine )..... it don't matter to the customer why the telephone connection got lost..... it is "all my fault for selling him junk"...

You can't win trying to fight someone's attitude. All you can do is try to explain that it ain't perfect, and it never will be.

Bottom Line: quit worrying about it.
As long as it locks back in, be happy it works.
 
Now, some Real World experience for you as of right now.

My wife has been in hospitals everyday since August 19th of this year.... a very sick lady, but strong and going to win this battle. We are now in a nursing home that provides Physical Therapy to help her regain her strength so she can be independent again... months in a hospital bed takes all of your energy away....

Now to what I am getting at: WiFi from the hospitals and nursing homes are mostly a joke.
Between 2 AM and about 5 AM it is pretty good, I am the only soul almost who is trying to use it... and it works okay.... not great, but "okay"...

well today, we are in a new place, and the WiFi is not strong enough for either of my two laptops to lock onto and use it. They just won't log in. So, I pulled out my Verizon MiFi router and start paying data $$$ to use my laptop and try to keep my brains from going bananas..... It worked great for about 2 hours, and then it got hot and quit working period.

Well, after that quit, I tried the WiFi again.... a wasted effort.

So, I turn on the Note 4's Hotspot and all is well again..... but, if I get a phone call, the Internet is dead....
argh!!!
 
It happens everywhere. I've tried powering off the router several times. It is an att uverse router, I've got the gigabit Internet. At most 4 devices but most of the time only 2. My next step was going to be factory resetting my phone.
Possibly it's interference. Could try changing the WiFi channel in the router.
 
It happens everywhere. I've tried powering off the router several times. It is an att uverse router, I've got the gigabit Internet. At most 4 devices but most of the time only 2. My next step was going to be factory resetting my phone.

sometimes where there are problems they will clear up when you wipe the system cache. try the following. It works with most samsung phones.

1. Turn off your phone

2. Press and hold the Power, Volume Up and Home buttons simultaneously.

3. You can release them when you see the Samsung logo with Recovery booting written in blue at the very top of the screen.

4. You will be brought to the Android System Recovery screen

5. Use the volume buttons to scroll down the list to highlight Wipe Cache Partition and use the Power button to confirm your selection.

7. You'll see a notification at the bottom of the screen in yellow to show that the system cache has been wiped.

8. If Reboot System Now is not already highlighted, use the volume keys to highlight Reboot System Now and press the Power button to confirm.

https://www.androidpit.com/how-to-clear-galaxy-s5-cache
 
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