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network access denied

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? 

2 Replies

...check which ports need to

...check which ports need to be opened on the firewall to allow access between the clients and the host computer.

Check this Microsoft KB

Check this Microsoft KB -

Internet firewalls can prevent browsing and file sharing


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