Transport: couldn't connect to hqplayer

Roon(PC1) => HQ(PC2) => DAC
Q1: Is this the correct way to juggle roon+HQ across 2 computers?

I’ve seen this posted in 2017 and none of the responses shed any light on my issue
I tested HQ on PC2, and it’s plays on it’s own via ASIO and WASAPI

In Roon HQ is setup like this…

When I hit play I get this…

PS firewall turned off on PC2

There’s a button on the far right hand side of HQPlayer’s toolbar. In its default state it doesn’t allow incoming connections. Any chance you haven’t flipped it yet?

See here for screenshots