IE won't load certain pages, Firefox won't connect at all.?

My Internet Explorer (on my other computer, obviously) won't load any site that requires a log-in screen - it gives a Page Cannot be Display Error immediately after clicking. Some sites it does this when trying to log on, some sites it does this simply on the login screen itself.

Additionally, Firefox cannot connect at all. It loads no sites whatsoever.

I have tried disabling the Firewall. I remember having this same difficulty with my desktop, but with my desktop, restarting the computer always cleared up the problem.

Any suggestions?

IE won't load certain pages, Firefox won't connect at all.?windows firewall

firefox ,click on

tools/options

then click on connection settings

then put a dot in

direct connection to the inthernet then click on

ok then click on ok again then close off firefox

IE

click on tools / internet options

click on the connection ,tab click on the lan settings tab

tick the top box

automatically detect settings

then click on

ok

then click on

apply %26amp; ok

close off

(IE) then open (IE)

if it works its fixed

then click on firefox

if that works that is fix

if they do not work then uninstall firefox %26amp; ( IE) %26amp; reinstall them