iPhone wifi issue

[zuma022]

I have an iPhone 4S (iOS 6.1.3) and an AirPort Extreme. The phone keeps dropping the wifi signal as soon as it connects. My iMac and iPad are on the same wireless network and they have no problems connecting or staying online.

I'm at a loss. I reset the AirPort Extreme and the network settings on the phone, forgot and reset the network, restarted both multiple times and I still have the same issue. The airport utility app on the phone says it didn't detect any base stations even when I'm right next to it. I don't understand how the iMac in a different room has no problems connecting and the iPhone drops it constantly all of a sudden. Nothing has changed here. Anybody have any tips? This is driving me nuts

 

[tomudachi]

wifi not keeping connecton.

I have 2 iPhone 4 on 6.1.2 and 6.1.3 and iPod touch 3g 5.1.1 with WiFi dropping or not seeing the WiFi and drops as soon as it connects it losses it.
AND I have android tablet jxd s7300b WiFi works just fine down speed 20mb up speed 5mb

What I have done

1.reinstalled the phones a iPods (((still nothing)))
2.replaced the modem and router (((still nothing)))
3.took the phone to a store and my friends home. (((Still nothing)))
4.down grade it from 6.1.2 to 4.1.2 and 5.1.1 and upgrade to 6.1.3 (((still nothing)))

I am a iPhone repair guy and I can't. Get it


HELP ME PLZ