Hello,
I have some problems with connecting and interacting with my nRF9160. It doesn't show up in LTE Link Monitor, only got "No supported devices connected" - If i have option "Show only supported devices" active. If i disable this option, I got:

If I press the J-Link I got the error in red "Couldn't identify serial port".
For the record I can use my VS Code environment to compile and flash the SoC. I can also run the nrfjprogram -commands without problem.
The application is supposed to connect to a lwM2M -server which it doesn't, that might indicate that there is something wrong? The PCB is not broken, it is working on some other computers and the PCB worked just before i tried to re-flash it with my current environment.
I have tried starting nRF Connect as admin.
I got the nRF9160 DK working on my computer, but not this project.
My setup:
Windows 10
J-Link EDU with Cortex SWD adapter
Thank you!