Hello world, hope everyone is safe.
I purchased a slightly used newer hardware Balance 20 (3 WAN ports) and connected it to my good old Pepwave SOHO MK via PepVPN. I was so happy for a week when the PepVPN tunnel was working and my locations were all on one big network. Then about a week later the tunnel went down and I was unable to bring it back up again. I tried changing ports, with or without shared secret, DDNS and actual IPs, and even tried backup WAN incase ISP was playing tricks. Router ID has same name as PepVPN name (did not test changing these). No success.
Temporarily back to remote users VPN server.
Pepwave SOHO - 8.0.2 build 1480
Pepwave Balance 20 - 8.0.2 build 3667