my ie will not browse while running aol

after logging on to aol ie will not open any pages. it worked before and now it does not.
I.m running my system through a netgear router with a cAT 5 cable.no firewall.After opening ie I type in a web address and nothing it say s the usual cannot find page ect. I have checked all settings and nothing has changed.I,m running win xp pro.any help would be appriciated.