@sarpi VX220-G2v doesn't seem to be in the tether compatibility list for DSL modem routers - details.

@ANI500 Configuring the PCs with IP addresses 192.168.0.1 and 192.168.0.2, network mask 255.255.255.0 for both and no gateway for both, should work. Make sure that the network type is private network...

@Carlos79 You can see your exact router model on the device bottom sticker - details. Your router model is AX1800 which doesn't have VPN Client implemented according to its specifications - details....

@Prisoneer With the topology you've described I'd use C80 in AP mode. Thus all your devices behind Nokia G2425G-A would be in the same subnet and you'll avoid a double NAT (if C80 is in router mode)....

@ThisChocolate21 No, you don't have to worry - port 22 is used for tether app access only - details.

@fishass Why don't you try via web browser ? Go to http://tplinkplc.net or http://tplinkplclogin.net/ then change the password here: N.B. (you need to be connected wirelesly to the powerline extender...