Q: wifi doesn't work with IOS 7

Same here. The Wifi button in Settings is greyed out and not accessible. When asking Siri to turn on wifi the response is that it is turned on but checking settings wifi is still turned off and unable to be turned on.

Rebooting my router has re-established the iPhone connections using both 2.4Ghz and 5Gz connections.

???? Been connected for 5 min.

My feelings exactly ... the arrogant bunch at Apple aren't taking their customers seriously ..

There are more than enough people experiencing this issue for them to act - but they're just used to treating their customers like rather stupid people ...

Come on Apple - pull your finger out and do something!

I count 6675 users. So far.

Udated my i4s to iOS6.1.2 to iOS7.0.0 on 18.09.2013 ,

wifi works perfectly from june 2012 until 20.09.2013 in the morning. (+-30h)

Suddenly it's gone, impossible to move the wifi on/off button in settings, no more wifi

a) Tried this > http://support.apple.com/kb/ts1559

Result = DOESN'T WORK

b) Tried this solution http://support.apple.com/kb/ht1414,

my i4S is virgin new, but the on/off button in settings is still not working = no wifi

APPLE DO SOMETHING . BRING A NEW iOS7 UPDATE !!!!!

No you don't. You count 6675 viewings of this thread. How many times have you viewed it so far? Five times in the last two hours, I see.  So if that is typical, start by dividing by five. I personally doubt there are over a hundred or two people contributing to the thread.

I may have found a workaround. it took me a while to figure it out, but it seems to be controll center tha'ts causeing the issue. turn controll center off  both from lock screen, and from apps, put into airplane mode, and reset network setting. worked for me, just now.  hope I can help some people with this.

Tried Mcourd's workaround, but no luck. Still can't access wifi or Bluetooth.

Nope tried disabling control centre.

You can turn off the buttons as much as you like but it doesn't disable the control centre.

Did all this and no difference, thanks for the suggestion it was worth a try in the absence of Apples' fix and abdicating responsibility.

Mcourd's work around didn't work for me either even after a complete restore of the device ...

When will Apple get it's act together ... so frustrating ... not a quality company ...

I agree. less than 100

My wifi connections is still working (both 2.4G and 5G) connections since rebooting my router.

Same for me. VPN isn't working either.

Did you have a greyed out Wifi button before or just problems connecting?

I think we have to distinguish between those two different problems!

My IPhone 4S  has shown both: at one stage problems connecting when wifi was turned on (either none or only one of two local routers was shown); then at another stage wifi  greyed out

Any ideas as to what the common theme is for why a phone gets this issue?

My device is a iPhone 4S on Verizon in US Bay Area.

I upgraded from 6 via the setting option on the phone directly w/o it being plugged into the iMac.

It worked for a few hours and now the enable wifi button is greyed out.

Also, do we need to call Apple support or is submitting an issue here good enough to help convey this issue is impacting users?

HTHs