
Been receiving the following messages at the same time every night for a few weeks now. Looks like it is trying (and failing) to update the dongle on my AC-3.0 inverter.

Any ideas on why it is failing or what would change if it succeeded?
Communication between dongle and router appears fine.
For those without a microscope to hand the message reads:
Time: 02:50 or 03:20 or 03:50 (three attempts every night at the same times)
User: Server
Register: Dongle Firmware Version
Message: Inverter Timeout
Previous Value:
Value Sent:
Response: -1
Via: Automated Maintenance