Sure! BTW, I also have a Pixel 6 with Tailscale, just tested it with the Roon Remote app and also cannot connect to my Roon core.

really?

i have a Raspberry Pi with a ALLO DigiOne Signature as Hat, and have volumio with a roon-bridge plugin installed, and zerotier installed on the pi. (this way i can just take my little Streamer with me, and have access to my roon-core from anywhere.)

and some weeks ago i tried this the first time and noticed, on that zerotier on iphones wont work, but i was able to run zerozier on an a samsung fold and i was able to find the roon core with the remote app without a problem.

maybe give zerotier a try

Thanks! Will definitely give it a try!