To richl,
You are responding to a very old thread/comments (Dated Oct - 2017). Not all "failed..." status are the same these days.
Are you sure you are using the latest OBi ata model (i.e. OBi200, OBi202, OBi212)? Or, have the latest firmware version for your OBi device
http://www.obitalk.com/forum/index.php?topic=9.0Again, this is an old thread (Dated Oct - 2017) because older OBi unit models (i.e. OBi100, OBi110) can also get the status "Backing Off : TCP connection to ___ failed" and the OBi100, OBi110 is not supported anymore, EOL (End-of-Life) a very long long time ago.
Please give us more details so we can determine for you.
Good luck!