Networkmanager settings between reboots

Hello,

I have a simcard/USB adapter which I’m using only for sending and receiving SMS.
System recognize it as a network adapter too (eth1) and I want to disable it because it messes with my routes (I have several networks on my LAN)…and I don’t need data through that line.

I tried :

  • modify Networkmanager.conf from ssh
  • disabling the network adapter using supervisor GUI

Neither approach works after reboots

What can I do ?
Should I fiddle to find the original Networkmanager.conf ? Or is there a cleaner way ?

Regards

Don’t know how, don’t know why… supervisor works as expected now, maybe latest update fixed it