I've got a brand new Epix - love it so far!
It's currently slowly downloading map updates and it's taking a while. I tried to connect it to Garmin Express on my desktop PC using the new cable provided. So far, I cannot add it to my account.
I get the Windows "bings" when I connect it, but Express cannot find it.
Using the same cable, USB port and software can connect to my old Fenix 5 plus. And the PC is connecting my Edge 530, no problem.
I usually plug them in every now and then for map updates etc.
So for the Epix, is there anything I can try? Or is there any need to connect to to the PC any more? Maybe I just give up and live with updating over WiFi, albeit a bit slower.