Hubconnect has worked flawlessly for me for quite a while. I have the server and a client on one lan and a client on another remote lan. The server and client work local but I cannot get the reomte client online. The error on the client side reads
I had a random hubconnect issue with the same thing after updating my c7's to the latest firmware. The remote hub went offline and I couldn't get it back on. However, randomly, after a few hours it came back online... That was only after the latest firmware upgrade... fast forward a few days...
got my new c8's and did the switch. same observation as you, the local lan hubs were fine, but the remote hub was once again offline.
I figured it probably had something to do with the connection key possibly changing with new hardware? So I ran the connection routine again, copying the connection key over to my remote hub and all is working again... I truly have no idea if the key changed with the new hub, but thats what I did and I'm back up...
It could also have something to do with the new firmware, as I had the same problem with the c7's a few days earlier. again, only between hubs at different locations. both times, both hubs on the same lan were fine.
I have tried the key several times. I did the upgrades 36 hours ago. Still working on it. I keep talking myself out of deleting it and starting over. ( just the remote hub) But they are seeing each other because the error thinks the remote hub is already connected.
I removed the instance before your response. Reset it up Both sides online and connected. Now resync is missing on the server side for devices to be brought over.