Thanks @GRL and @Vincent-TP. You helped me figuring out the problem. So if it's working for others with the same config as me, then it's definitely a problem particular to me, and since it's not my...

I just caught the ephemeral Firmware Upgrade error message of device "Oficina San Carlos". For this test I changed the "Device Management" to the local OC300 IP Still no luck on both sites I'm trying...

@GRL GRL wrote @Tintronic controller hostname/ip should be the internal LAN side IP of the controller, for example in my case its set to 192.168.0.230 which is my OC300 lan side IP Your port forward...

Hello, @GRL Do any of your remote sites have Site-To-Site VPNs back to the main site hosting the OC300 ? I have come across instances where if you are doing port forward adoption method, having a...

Hello @Vincent-TP There is no real Firmware update result. It takes about a day for any type of message to appear, and the only message is also not helpful. >>>What kinds of error messages? Could you...

Firmware update of devices on remote sites is broken once again (has been for months now). I had previously managed to get it working by changing the controller ports from the HW defaults to the...