@reolink-lorenz i got it ... little bit strange website design In the small dropdown box it is not clear witch version you see. Now I update my cam and it works.

It seems that the E1 Zoom IPC_515BSD6 is missing. Please note the B in the product number. All available firmware in download center is for IPC_515SD6 (without B). I own a B version too and still looking for actual firmware. Is the B-version a new version replacing the the other one?

Kind regards