You didn’t answer this question:
What device have you attached to sys-net?
Go in to Qube Manager, open settings for sys-net, go to Devices Tab, and
look to see which Network Controller is under “Selected”
Also, look under “Available” for Ethernet and Network controllers.
@unman
Devices are; Ethernet Controller: Intel corporation (6) I219-LM and Network controller: Intel Corporation.
How do I see what’s available for Ethernet ?
Sorry I’m very new to Qubes.
No need to apologise - every one is learning.
In the “Devices” pane of the Settings window, the Left Hand side shows
what is “Available” and the Right hand side shows what is “Selected” and
allocated to that qube.
I’m not familiar with that I219-LM, but a quick search suggests that
there may be problems with it in Linux.
If you have it on the Right (Selected), it may be worth trying a Debian
template for sys-net, to see if that will work.