Bold 9900 WiFi troubles

About 90% of the time after my 9900 has been on charge all night and I go to use the internet browser my phone will not load the page. It will however refresh Twitter & Facebook with speed.

To solve the problem I have to disable WiFi, load an internet page on 3G/EDGE, re-enable WiFi and then it will continue to work on WiFi

It is not my router as it happens on different internet connections that I connect to. It also doesn't appear to be software as I have used 3 different FirmWare versions and it continues to happen.

Any ideas?

which os are you using?
have you tried a different os?

I'm on 7.1.0.74 at the moment. This is my 3rd OS with this issue