first time user to this site, and i need your help, i have changed my broadband from orange to sky i have followed all the instructins and loaded my router etc and everthing was fine i could surf no problem but every 2 days or so i cannot get into certain sites ie the sky home page and other sites, i can get onto my bank sites no problem but noe even google, i have mcafee security centre which was free with sky but i also had it before, i have tried system restore to solve the problem without any luck.after a couple of days of trying, it will flash up with the warning that a network is trying to access the site and do i want to let it? when i have looked at the site through mcafee it is my host network sky , can anyone help?