It seems like you're facing difficulties setting up a homegroup between your two machines running Windows 7, especially due to the network topology where one machine connects indirectly through the other to the network and internet. Here are a few troubleshooting steps and suggestions to help you resolve this issue: 1. Network Connectivity: - Make sure that both machines are on the same network and subnet. - Check the network settings on both machines to ensure they are configured correctly for the same workgroup. 2. Firewall and Antivirus: - Disable the firewall temporarily on both machines to see if it allows the homegroup to be established. - Ensure that any antivirus software is not blocking the homegroup setup. 3...