This is something that has only become an issue in the past few days - previously it was fine.

When I open a new webpage in the browser, it will just sit there with the little thing in the address bar going from right to left and back again, and fail to load the page (ie. it doesn't get to the stage where it actually starts loading the page). Sometimes the page will eventually load, after a very long time; sometimes it'll just stay stuck for ever; sometimes I get a message "MicroB can't find the server at www......".

The problem will persist until I shut down the web application and reopen it. Then, it will work fine for perhaps the first three or four pages I open, but after that, back to the same problem of getting stuck.

I seem to get the same problem using the Firefox browser instead of the native one.

As far as I can tell it only seems to happen when I am connecting via my mobile operator (3UK) - not when I'm on wifi.

That would seem to suggest that the problem is with my network operator but I've tried my SIM in another phone and all seems to be working fine - no problems loading webpages there.

Does anyone have any idea what might be going on here?

I've even tried reflashing the phone in case I'd somehow messed up some settings somewhere but this hasn't made any difference.