LAN Connector -Intermittant

  Woodmouse 07:30 22 Jan 05

One PC with XP Prof and Service Pack 1. The other, which is connected to the internet, displays having Service Pack 2, although not by installation of the Disk, but by continuous up-dates. These are connected by a LAN cable. This set-up has been working fine, until I noticed the new Service Pack 2 Firewall had been installed, and I also upgraded Zone Alarm. When I attempt to transfer files from one PC to the other, on clicking My Network Places, both PC's display the other computer as "Unknown". Any ideas please on how to restore what was working OK.

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