I have a Windows work network with XP (32 bit) and Win 7 (64 bit) computers with Norton 360 on each computer. One of the Win 7 (64 bit) computers is serving as host for files and folders. The other computers are being blocked from access to the host. (Access denied.) When I reboot the host computer, then access is granted - for a while. I believe this is a firewall issue. How can I resolve it?
Check this Microsoft KB -
Internet firewalls can prevent browsing and file sharing
In the future, please visit the Norton Community for Norton Product support.