Port Forwarding Multiple Devices Through the Same Port

[WesL01]

Nighthawk MS60 Mesh Network

Im trying to port forward two or more devies through the same port, but every time I try and add the second one it says " Failed - Port Conflict with other service " anyone know how I can get around this? Like If I wanted to Route 192.168.1.38 & 192.168.1.48 through port TCP 44158 how would I do this?

[FURRYe38]

I don't believe you can use the same port for 2 devices. They can not occupy same port at the same time. You would need to find a different port to use or use uPnP which can establish a virtual port for a 2nd device. 

What Firmware version is currently loaded?
What is the Mfr and model# of the Internet Service Providers modem/ONT the NG router is connected too?