responding to my own post here with more info.... I see now that with two computers in my office, if one is using the bimserver the other shows up as "offline". If I close Archicad on the online computer, then I can go "online" with other and vice versa. The VPN on both computers seems to be connected just fine and of course internet works just fine on both. This suggests to me an issue with archicad, not my internet connection, because even if I don't have a ton of bandwidth shouldn't I be able to have two computers online at the same time? What exactly does "online" even mean and what causes the program to go "offline"? Is there a specific amount of bandwidth required to have two computers online at the same time?
Dave Brach/architect AC28 Macbook M4 Pro OS Sequoia