Fails to connect S3D

I updated the firmware on my mini with Cura and now, it does not connect to Simplify3d.
Everything was fine before update and I was able to use Cura and S3D without any problem.
Now only Cura, can anybody help?

Could be baudrate, new firmware versions are hardcoded to 250000.

Thanks alot.
As you said, it was the baudrate.