If you changed or upgraded your firewall software or anti-virus software, try disabling it. If it's causing the problem, contact the software manufacturer.
To Disable the Norton Firewall
Right-click the Norton Internet Security icon on the system tray and select Disable.
To Disable the McAfee Firewall
Uninstall McAfee
Reinstall McAfee, selecting Custom Installation.
Unselect McAfee Firewall.
Finish the rest of the McAfee installation as you did before.
To Disable Zone Alarm
Right-click the Zone Alarm icon in the System Tray, and select Shutdown Zone Alarm.
Also search the Zone Alarm forum for such issues as this product continually logging people off AOL, or Windows XP wrongly reporting that Zone Alarm has been turned off.
Cable broadband customers typically only need to configure the router from the same computer where the broadband service was established.
Routers have an default timeout of 5 minutes, after which the connection is renegociated. There may be a delay, or the connection may drop if there is a problem with the Internet service. The value can be set higher, or to 0, meaning the router never logs out. Consult your manuals for instructions. Check the Modem too.
Recheck your setup to make sure that the Server has the right Gateway and DNS settings.
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