updated to 6.1.2.42921 now 2 out of 7 of my cameras drop on an off worked fine on last update

updated to 6.1.2.42921 now 2 out of 7 of my cameras drop on an off worked fine on last update

Confirming server availability.
OK

Confirming camera is accessible.
OK

Confirming target camera provides media stream.
FAILED: Camera request "AddConfiguration" failed with error "unknown_error". Please try to reboot the camera, then restore factory defaults on the web-page. Finally, try to update firmware. If the problem persists, please contact support.

Diagnostics complete