Http error code - dhd

I've also got a similar problem:

When using the standard internet app on mobile data (3G/HSDPA) I get the error for all webpages:

~~~~~~~~~~
Web page not available:

The web page at: ############# could not be loaded as:

HTTP error code: 504
Gateway Time-out
~~~~~~~~~~~

All other apps that require internet/data over mobile network function correctly (e.g. facebook, maps, twitter etc). When using the standard internet app on wi-fi it works fine, so I decided to download another browser (opera) and without inputting any settings it works fine on the mobile network and wifi.

One theory, after the recent update of 1.32.405.6 this may have caused this problem???

I've gone through all the settings, and can't see any issues? Has anyone got any suggestions? Its driving me crazy.

Im on T-Mobile (through a 3rd party).

Many thanks in advance.

Dave