68K debugging on LifeDrive with CW 9.3

Hi.
I have a serial cable connecting CodeWarrior 9.3 to a LifeDrive.
HotSync at 19.200kbps does work.
In the SDK 5 FAQ I found:
"Serial HotSync works on LifeDrive, but only at low speeds (we were
successful only at or below 19.2kbps)."

I have tried different speeds:
57.600 I get a connection but it breaks after some seconds.
At any other speed I can not attach the debugger.

Attaching a Treo 650 to CW with 57.600kbps does work.

Any hints how attach the CW 9.3 debugger to a LifeDrive?

Best 

Markus