Having dumped Zonealarm and come over to Comodo Firewall, I am very impressed in general. However, there is a strange behaviour that I can’t resolve.
I have a home network (workgroup) consisting of PC1 (Windows 7) and PC2, PC3, PC4 (all XP).
Windows Explorer in PC1 lists under Network all the XP machines. However, files can only be accessed on PC2 and PC3. When clicking PC4 I get the error “PC4 is not accesible. You might not have permission to use this network resource. Contact administrator… Logon failure; the user has not been granted the requested logon type at this computer”.
I can ping fine both ways between PC1 and PC4.
The only thing I can think of is that I changed the IP address on PC4, after having installed Comodo. But I updated that in “Network Zones” and ran the Stealth Ports wizard to define a new trusted network.
Everything else appears identical for PC2,PC3,PC4 and these haven’t changed since the Comodo install on PC1.
Incidentally, there is another XP machine PC5 which I didn’t add to the Trusted Network, but I can still access it.