Cannot connect remote glance devices to HA Glance addon

I am trying to get cpu/mem data off my remote raspberry pi and remote ubuntu servers into HA using the Glances add on.

However on the remote ubuntu server running the “glance --browser” command it states it cannot find any Glance server on the local network.

Am I correct that the HA Glance addon is running as a server (the logs indicate it is)?

How do I connect a remote device into glance as I am going round in circles and obviously doing something wrong.