personthingy: Still not working for me. Updated to 2.55. Installed TLS update, did the extra reg key entries for it too. Run through Galaxy. Still nothing.
Sent a ticket, hope HG can fix this. :c
I think you should not apply the TLS patch, that was an old solution only for connectivity, not for MP. The patch notes of 2.55 said it was fixed for Win7 so no need to also app.ly TLS patch.
I have a Win7 rig also (but playing on Win10 currently), I will soon see if it works, I don't install through galaxy, I just launch galaxy before I start NMS and it has worked until now.
I also had to change my MP settings before seeing Crossplay in action (on Win10), so go check your in-game options.