If you start Teamcenter with portal.bat then you are fine with your entries you showed before
as said before, fccstat -kill not needed
that is to make sure, a already running fcc is stopped/killed before starting a new one
You need this, if you have more than on TC Client on your Computer and connecting to different TC servers
We copy pasted this folder from a co-workers computer:
Now it started working.
Our virus scanner SentinelOne 18.104.22.168(California) caused this.