I have set up a home network, the two pcs are showing in the network and the ip addresses are showing diffenent (one ends 0.101 the other 0.102) when I tested them on PC1. On the other PC2 it shows the network name, but cannot open the folder without an error message occuring and computers dont show. The LAN connection (shown through main PC1) ends 0.100 and the standard gateway 0.1, also I am not on PPPoE but dynamical assigned IP address from the provider. Whilst opening the 2nd PC in the network on the main PC, the error message "communication with the 2nd PC is not possible" occurs. The network diagnosis sent a ping-signal to the remote host but didnt receive an answer. Internet works on PC2 though through the wireless connection and Zonealarm firewall on PC2 is set to accept the IP address on PC1. On the main PC under 'ipconfig' there are 4 tunnel adapter LAN-connections Whilst the local connection IPv6 -address is filled in, DNS-suffix and standard gateway arent. I have no idea what this concerns. I can only think that Windows Live OneCare is having some bad influence with the connections on the main PC as I cannot set the IP address of PC2 to be set in the firewall. But OneCare shouldnt cause a problem, because I am trying to access PC2 from PC1 (pinging OUT shouldnt be a problem?)