Interesting. I have two hubs set up, one worked fine (the one we use every day) and the other gave the error when I restarted it. I checked, the first had XMPP enabled as expected, the second did not. The second one also has a Cloud Access option that the first one does not. Hmm. I enabled XMPP and disabled Cloud. And then it started to work.
Try disabling XMPP, restarting the hub, then enabling it again.
If you're still getting the error, disable the device, then create a new one with the correct IP address. DON'T delete the old one. See if the new one works.
This is probably a dumb question, but are you able to ping the hub from the Mac?
If so, and if you have 'nc' (NetCat) on your Mac, you could try 'nc -zv ipaddress 5222' and see if the XMPP port is listening. Success will look like this:
% nc -zv 192.168.0.118 5222 Connection to 192.168.0.118 port 5222 [tcp/jabber-client] succeeded!
Also, how many NICs are active on the Mac, and are they all connected to the same network?
Again, probably dumb questions. Apologies if so.
Last edited by gt3mike on Thu Dec 03, 2020 1:57 pm, edited 1 time in total.