[Zapakos]

Thank you for answering.

I tried a different pair of cables. Still the same.
The cables of course are connected to the right ports as described in the manual. Loop sync out from SYNC goes to Loop Sync in on the 192 and vice versa.

In the Peripherals window, SYNC is enabled. In Session Setup the clock source is SYNC, Sync Setup is set to Internal/VSO

The Locked and the Speed Cal Indicator are lit up.

Concerning the hardware: On the Sync the Loop Master LED is on,
on the 192 the Loop LED (Sync Mode) flashes (!)

Sample Rate is set to 44.1 kHz in the PT session and indicated correctly on the SYNC and the 192.

But the system works on a wrong speed/sample rate (around 20% slower).
Furthermore there is no signal on the digital out ports (AES and spdif).

Any suggestions? Thanks again..