Apple iPhone 3G 8GB gives "No WiFi" error

[72859]

I have had an iPhone 3G 8GB since April 2009. This morning I noticed that it would not connect to my DG834 ADSL router/WiFi access point. I discovered the WiFi setting (Settings/WiFi) to be greyed out and not accessable and under General/About/WiFi Address that there was no MAC address. I powered it off and on since plenty of previous issues have been resolved in this manner - but not this one.

I then did a soft reset (Top power button and home button held in together until the apple came up on screen and I put in my passcode and PIN. This enabled the WiFi setting and returned the MAC address in General/About menu but device still does not seem to connect.

Is this a hardware failure or is it possible for a virus to have disabled the WiFi? It has been working well up until now without a signal degrading so it seems strange.

Regards
Paul

 

[OomD]

1. Did you recently upgrade the iPhone's OS?
2. It's most certainly not a virus, you can relax about that
3. Has your router's WPA key etc not changed?
4. Do you have other WiFi devices successfully connected to the router?

 

[OomD]

Also, did you drop the phone perhaps? Not being able to read the Wifi module's MAC address sounds like a hw fault to me, therefor it keeps the WiFi options unavailable if it cannot communicate with the WiFi module itself.

 

[paint_by_numbers]

Have you restarted your router? I had the same problem just the other day with my mac not finding my wireless router. I restarted the router and all was fine after that.