Q: iphone 5 wont stay connected to wifi

It seems that when you turn on "ask to join" it will fix the problem. If not then make an appointment to the genius bar and get a replacement. Even though that may be out of iphone 5s for sale, they still have replacement iphones for these kinds of problems.

SO FAR that has worked for me!  Though the signal strength is not what it should be!

Thanks

One of my iPhone 5 has continued to work fine after messing with settings but my other iPhone 5 will not "ask to join network" even though I have in set to ON. When I do connect to the network and look at the details of the network, IP Addresss and such, the option for "Forget this Network" is not available on the iPhone that does not keep the connection.

I took my phone back to A T & T and they will not exchange it.  Said I have to wait for the techs to get a fix for it and then download it to my phone.  I wonder how long that will be?  :

I thought I was the only one having this issue but then decided to google it today and landed on this thread.

My iPhone 5 (verizon) does the same thing...it stays connected to WiFi for some time, but when I check after say 15 minutes of it sitting on my desk (with full WiFi strength) I discover that it's back on cellular (LTE) and need to go back into Settings to reconnect to wifi (the password is remembered thankfully).

Never had this happen on my iPhone 4, though it has iOS 6 now, so I will try to reproduce it on the older hardware & see if it's maybe software related.

Ok to follow up on my previous post, after some testing my iPhone 4 running iOS 6 dropped it's WiFi connection as well, after sitting idle for some time. Another coworker in the office experienced the same with his iTouch 4G.

All are running iOS 6 so perhaps there is an iOS 6-related issue. Never had issues with WiFi disconnects previously (on iOS 5.x). FWIW we're on a WPA2-Enterprise wifi connection here in the office.

The option for "Forget this Network" is not available on my wife's iPhone. However it is on my iPhone and it is my wife's iPhone we are having WiFi connection problems in which her iPhone is not automatically joining known networks.  This option is located under Settings//WiFi//and then expand the details of the network you want by clicking the blue greater than sign.  Does anyone else notice this variation an iOS 6 setting?

I had this same problem with my 4s recently. I never use to have this problem and then it began with the latest iOS5 update and continued with iOS6. I have WEP2 security, not sure if that matters or not.

The fix for me was to manually add the network which is easy. Just enter the network name, security type, which can be found if you are connected via a computer and the password. I now connect to the network automatically. Not sure how Apple hasn't fixed this yet. Hope it works for you all.

Thanks that suggestion and I now am connected to my home wifi on my iphone5!

So after almost a week of no wifi I got tired and made a Genius Bar appointment and explained that I restored the phone and tried everything and it still wouldn't work, the person helping me tried to connect to the apple store wifi and it wouldn't even find it so without any hesitation he exchanged it for a new one and now I'm sending this using wifi! :D I would recommend doing this to everyone having the issue. If it helps I'm from SoCal and this was the Victoria gardens store in Rancho Cucamonga.

Same problem here with Verizon iPhone 5.  I use WPA-PSK.  Sometimes while I am home and in close distance of my router I will turn on the phone to find it not connected to WiFi.  Phone just says LTE (I get full bars LTE ~ 28Mbps down at home - faster than my home connection).

If I go to WiFi settings it shows not connected, searches for WiFi locations and brings up a list including my home router.  Clicking on my router is enough to immediately connect without asking for my WPA key, so I know it hasn't forgotten my router, it just will not connect automatically.

Now that I was forced to leave my unlimited data plan, this is a bit concerning.

Also the turn on "Ask to Join Networks" workaround is not a good one for me since I'm around WiFi most of the day (work) which I cannot get internet through.  I don't want to constantly get nagged to join WiFi networks.  I only want to connect to WiFi at home.

I have the same problem with iphone 4s.. I have to turn off cellular to keep it on wifi.

I have an iPhone 5 and my husband has a 4.  Ever since IO6 was downloaded we can't keep connected to the router.  When I went to the store, they gave me a new 5 but the same thing happens.  It's not the phones, it's the new operation system for sure.

My iphone 5 with ios 6 would not reconnect to wifi when back in the zone.  I created my own network by selecting other under wifi and then typing in the name of the router, security as WAP and entering my password.  Now each time I come back to the zone it just connects and stays connected. I also did the same thing with iphone 4s with ios 6 and it works flawlessly.  I hope this solution helps someone.