they both running Norton.
Norton what? Antivirus, Personal Firewall, Internet Security? Which version 2002, 2003, 2004?
If it's Personal Firewall or Internet Security open it up and click on Personal Firewall, then click the Configure button in the bottom right hand corner. Click on the Home Networking tab and then click the Wizard button. Follow the instructions. Do this on both just to be sure.
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