Losing VRM connection when moving installation

I am not sure what is causing this problem so I’ll ask if anyone else has had this issue.

As in title I loose connection to vrm when I take the boat out of the harbour.

Cerbo is always connected when in harbour.

When I take the boat out it warns about geofence and shortly after loose connection.

When I stop the boat at next harbour Vrm starts logging again.

Firmware is 3.73. Last year I had no problems with this. I have checked that other devices connected to the network has internet access.

Router is not connected to any WiFi. Only 4/5G.

Any tips?

Turn off geofence?