Node loses connectivity - but can see peers/moons and data flowing to/fro 9993

Zerotier works… and then stops working on a node behind a NAT firewall.

traffic IS flowing to and from the node on port 9993 UDP

The node seems to have DIRECT connections according to peers/listpeers to the MOONS and the other nodes

Node is disconnected from the “controller”

What more do I check to see why it’s not connecting/seeing the controller and have network packets flow?

Could this be a 1.10.x problem? Anybody else seeing similar?

Jip, 1.10.2 nodes loose connectivity… reverting to 1.8.10/1.8.9 fixes it.