NIS 2010 General Rules (Windows Filesharing) don't work properly

I have an issue where one PC occasionally can't see another PC on my home network. The communication

is being blocked by "Default block EPMAP" however this is below the rule that permits EPMAP for computers

in the same subnet.

 

Both PCs have two NICs, one is for internet access and another is for LAN access. Specifically the LAN

uses the 10.x.x.x range with a mask of 255.0.0.0. If the allow rule says "Any computer in the local subnet"

and this rule is ABOVE the deny rule, why is the deny rule blocking access from the two PCs when both

are on 10.x.x.x / 255.0.0.0?

 

I have "Automatic File/Printer Sharing" off, both PCs on the 10.x.x.x are in the "Shared" group on the network

map and I also have "Automatic Program Control" off. Lastly, the IP associated with the NIC for internet access

for both machines is in the "Restricted" group in the network map.