iPhone 5 - connected to WiFi but no internet

I have just purchased an iPhone 5, and after it updated to ios 6.0.2 the wifi will no longer log into the local zenbu wireless Internet fully. My iPhone 4S running ios 6.0.1 has no issues on the same. Am I going to have to return the iPhone 5 for a refund after 3 days because of this? This is really annoying as it was working before the upgrade to ios 6.0.2, but it still worked with ios 6.0.2 for a few hrs before this login problem arose. It does login to the secured zenbu interface no problem, but the zenbu router will not allow it onto the nett. It's as if the iPhone 5 can't perform the correct handshake. I wish I could change the MAC address to see if that would resolve this, but it sounds like that's impossible. I tried resetting all settings, and still no difference. I also have no idea how to downgrade to ios 6.0.1

my moms iphone5 iOS 7.0.4 had the same problem(her iphone is connected to a wifi network but cant surf the internet)

(i tried with my phone to see if router was the problem but the wifi network was flawlessly working with my phone)

i changed the settings of my moms iphone 5:

SETTINGS > WI-FI > turn OFF the HTTP PROXY

if its still in manual or auto mode and you turned it off then forget the network and reconnect to it again

then turn it off again

this solved the problem for me

i hope that this method was helpful

i had this issue and went through the recomended router setting guide http://support.apple.com/kb/HT4199 and found that when i turned off MAC address filter everything worked

oly sovle you make ip in you iphone

i sovl my problam go to setteing -- wifi--- conct wifi no clik wifi -- ip statc make ip

ip adreesss ----------------- 192.168.1.122

subnet mask--------------- 255.255.255.0

routar your rutar ip

dns--------------------- your rutar ip

now calk top wifi

now restart you phone

now your problam is sovole

I reset my router to the default settings and now is working perfectly fine! After then I reset it back to my personal settings again with no problems at all!!!

This is what I did and it has fixed my problem: iPhone 5 would connect to Time Capsule wifi with no problems. After a while (I don't know exactly how long), it would still be connected, with wifi bars and everything, but it would not move data at all and the Time Capsule would have an error (yellow triangle exclamation) on Airport Utility. I would have to Reset Network Settings to get it back to normal. What I did is what amin650171 did: Use Static (Manual) instead of DHCP (Automatic) IP Address on the iPhone and created a matching IP Address DHCP Reservation on the Time Capsule via Airport Utiliy. It has been working so far (cross-fingers, knock on wood). Hope this helps! Good luck!

If WiFi is working. the phone is fine. WiFi connects to the router and the router, in turn, connects to the Internet. This is a router problem.

Try a different WiFi system.