TBM 930 - authentication issue

Yes, that is exactly the same issue as described by OP. And the solution is also the exact same, see my previous reply! Verify that the folder in which the simulator is installed has correct permissions and is not read-only.

If that still fails, try running the simulator as admin. If that also fails, feel free to report back and we can take a look at your logs together!

The above has worked for several betatesters. Running as admin should not be necessary, and the solution has always been to verify the permissions of the folder in the end.

Kind Regards,
Malte