In SSR running some qmicli command leads to interface going down and USB network interface on linux OS level goes down as well.

SSR uses qmicli to manage and monitor LTE modems connected to it, So the software itself invokes multiple instances of either by highway, stateMonitor process etc..

In normal scenario, 2-3 instances of qmicli commands happens to run concurrently though being invoked by aforesaid process in a sequential manner.

However, running qmicli command manually with some options can lead to unexpected behaviour resulting in application issues.

It is recommended to avoid running qmicli manually on production SSR devices without validating in Lab.