Allocating local IP address to PC connecting via Fusion Hub

I have a local network hosted by a Peplink BR1. It is connected to the internet via CGNAT so has no static IP address for remote access. Its network is 192.168.50.0

I have set up a Fusion Hub which connects to the BR1.

My PC connects to the Fusion Hub via remote access and I can see some network devices. The PC is allocated IP address 169.254.131.16

However the network device that I am trying to access will only allow access from the local network (192.168.50.0).

How do I get the Fusion Hub to allocate a 192.168.50.X ip address to my PC connected via Fusion Hub instead of 169.254.131.16?

Thank you for your help.