Four friends (A, B, C, D) installed RadminVPN for gaming. Two of them (C, D) have problems connecting to each other, error: 0x7000003ed. However, the connection with the others (A, B) is stable. These two friends found laptops and connected to the same network (C1, D1). The connection problem persisted on the new devices. The connection diagram is below, green - normal, red - bed. What could be the problem?
Please, Check you firewall and also you need to make sure that port range 17301-17400 is open. Here you can read about opening ports https://www.windowscentral.com/how-open-port-windows-firewall
Try to create a network in Radmin VPN where these 4 problem connetions will be , after that send to us logs of Radmin VPN ( Log (Radmin VPN - Help - View log))