I have 2 PC's running windows XP pro. They connect via wireless next work.
PC 1 : ip address is 192.168.1.10 , subnet mask 255:255:0:0 (not conventional I know)
PC 2: ip address is 192.168.5.30 , subnet mask 255:255:0:0
PC2 sees PC1 with no problem. PC 1 does not see PC 2 though. I have checked access rights and all is OK.
If I go to PC 2 and run the ping PC 1 then I do get a response, and suddenly PC1 sees PC 2 and all works well until either of the PC's is rebooted or loses connection.