Same again :o(
2017-10-05 14:06:06: Connecting Channel to RogerHaigh failed - CONNECT error -55
It's every few mins now...
So I just spent the last few hours running a cleanup etc and restarted.
Less than an half hour later I get, "2017-10-05 20:58:22: Connecting to target service...
2017-10-05 20:58:22: Established internet connection. Service=1
2017-10-05 20:58:22: Reconnected successfully,
Update: The system has now been stable for a few days and not crashed at all. Not really sure what changed apart from removing an unrelated 4TB drive and pool from the ZFS system. I'm just happy it seems stable now.