Sony Ericsson :: W995 - WIFI - Internet

I have had the W995 for close to a month now on a contract from Virgin and I am very pleased with it in almost every aspect apart from one!

The problem is as follows.
When I connect to my WI-FI via the W995 I wait until I get confirmation that I am connected and then I attempt to access the internet via the browser provided by Sony Ericsson. After a short time I get the message 'Communication error. Try again, turn off Wi-Fi or contact your provider for support'. I have tried many things to fix this problem. I have spoken to Sony Ericsson and they suggested altering my security settings on the router. I have tried using Opera Mini as an alternative browser and perhaps 2 or 3 times it worked for a minute or two and then it failed. I have searched quite a few websites and seen that an awful lot of people have the same problem without getting anywhere with it. There are occasional suggestions that I have read and tried such as manually configuring the service and putting various IP addresses into my phone but nothing works!