The thing that ISN'T normal is the fact that certain web pages (Hotmail, AOL UK, lloydstsb, mozilla.org) just refuse to open, stating that the 'document contains no data'. These pages are still (mainly) available within the AOL Browser, but I want to stick to Firefox.
I have changed my MTU to its optimum setting on both PCs and the Router. I have switched off the URL filtering on the Router, and have set Rules to allow all traffic, thereby bypassing the Router's firewall. There are no problems with IP addresses. Has anyone had a similar problem, and if so what the [bleep] do I do? It's a bit frustrating to say the least!