Try the following
Open Internet Explorer, click Tools, click Internet Options, click Connections, click LAN
> Settings. Uncheck everything in this box
Which includes
"Automatically Detect Settings" and "Use Automatic configuration script"
OK and Apply it
Under the General tab>>delete cookies and files>Including offline content
Close IE
Go to start>>run>>type in
cmd
Hit OK
type in
ipconfig /flushdns
Hit OK
Restart computer
Any luck?