iOS 6.1 Update and now WiFi problems

try this settings - general - reset - reset network settings.

After you phone boots back up, then connect to your wifi again.

Have been fighting this all afternoon. Unplugged both my DSL and Airport and got it to join my WiFi network. As soon as I walked to the other side of the house, it was gone. Checked under Settings and saw WiFi was not connected. Not only not connected but the on/off switch is greyed out and refuses to become active. Did the 6.1 update last night and it seemed okay this morning. I tend to use my MacBook or iMac more than the phone so I didn't really see anything wrong. Lost the WiFi a couple hours ago, did a Restore but no luck, other than that short period of time mentioned above. I also noticed when typing email, text, or iMessage, the keyboard hesitates before displaying, especially if there is a photo attachment included. Had an earlier note posted but thought it had been cleared after powering down the DSL modem and router.

dont know if this will work for everyone but i just updated to ios 6.1 on a ipad mini and ipad3 and try.d every thing and. for me i needed to use 8 leters/numbers in my routers password!!!!! anything under 8 and the "join" button stays grey... hope this helps

bugger wrong place lol al get used to this one day:)

Have had a few instances since the update of customers having this problem.

The main fix seems to be to make sure you have your router/access point firmware up to date, make sure you use WPA/PSK2.

The "5"'s at least join a lot faster and stay connected. At least on our AU models.

Another thing while your in plying with wireless settings, some routers that use the "auto channel" feature confuses the IPhones. Try turning it of and fixing it to something like channel 7 or around the middle of the band segment.

Hope this helps a little.

Cheers!

This worked. I was having issues with my i5 connecting to UVerse 2Wire WiFi after ios 6.1 upgrade. Thanks for the post.

I should clarify. The post by 777Apple777 worked. My i5 would connect to WiFi, but the performance and thoughput was terrible.

Had the constantly rebooting, not holding signal issue. Just had to go get a new iPhone 5. If you go to Genius Bar, say you already restored as botha NEW IPHONE AND RESTORED FROM A BACKUP they will give you a new iPhone 5.

Tech said he thinks its an issue with the Sim reader . . . on a small percentage of phones it fails with ios 6.1

My new phone is working fine.

Thanks! This helped!!

Problem solved but it took a trip to the Apple Store for a replacement phone. Not only was I having the problems I reported above but when I made a phone call Wednesday morning, I found that what came out of the ear speaker sounded like someone wrinkling up a piece of paper. Tried another call and found it to be the same until I put it on "Speaker" then it was clear as a bell. Hmmm, WiFi module & ear speaker both gone bad!! Anyhow, set it up as a new phone with 6.1 on it and all is well. The WiFi holds nice and strong again even out in my driveway which is on the far side of the house from the router (Airport Extreme 2nd generation).

I was also having issues with wifi speed and was able to fix it by changing from WPA2 to WPA security. WPA2 was perfectly fine before this latest 6.1 update.

I agree. It is much better with WPA. Thanks for the note.

I tried all the suggestions listed in this thread with no success. any other options?

I have an iPhone 5.

Go get a new phone. I got one the other day. Really u can't fix this.