I’m operating a NM client on a late 2014 MacBook Pro running Mojave 10.14.6 (18G95) with NoMachine 6.7.6. The two servers I’m connecting to are a Dell Lattitude running Kernel: 4.15.0-58-generic x86_64 bits: 64 compiler: gcc v: 7.4.0 Desktop: Cinnamon 4.2.3 wm: muffin dm: LightDM Distro: Linux Mint 19.2 Tina base: Ubuntu 18.04 bionic and a HP EliteDesk 800 G1 running Win7 32bit (Windows Media Centre). They both also are running NoMachine 6.7.6. All systems are on the same LAN.
None of these systems will either send or received numeric keypad keystrokes to or from each other. How do I remedy this? Is there a setting I’ve missed in the installation process?