Please, check your port forwarding rule. You now should have two - one for old with 28967 external and 28967 internal ports, and the second with a different external port.
For the second node you can setup port forwarding in two different ways:
- forward a different external port, for example 28968 to the 28967 but with an IP of your second PC
or
- forward a different external port, for example 28968 to the 28968 and IP of the second PC. In this case you also need to change the port in the
server.address:option of the config file of the second node (assuming it’s Windows GUI too; if it’s a docker, then you need to change only port mapping to-p 28968:28967)
In both cases the external address should include your external port, for example, external.address.tld:28968
You can read more there: