If your Firewall is blocking the MyPCBackup application you will need to allow the following hosts / ports:

• backupgrid.net Port 80/443
• upld.storage.googleapis.com Port 80/443

You may also need to enter a destination IP:

• backupgrid.net - 184.154.150.140
• upld.storage.googleapis.com - 173.194.67.132