I cannot connect in either direction.
Something have broken, earlier you wrote that you could connect from office to home. Maybe IP was changed. Are you sure that you chose properly address?
Additionally please verify if the IP address which you are trying to connect is indeed that machine public IP (for example there: https://www.whatismyip.com/). If not – it could indicates that you have a double NAT networking. Which means that NoMachine has to go through two or more routers. In that case you need to set up separate port forwarding rules on each device.
It will be possible to skip these steps with NoMachine Network feature (https://www.nomachine.com/FR07J02731) which is coming soon.