I am now able to ping the second pi, I can open wolfram through commandline with
"ssh pi@192.... wolfram' - but I am still not able to get its kernel run inside Mathematica...
Any ideas how to correct setup kernel-properties?
'Basic options'+remote and entering its Ip as hostname always gives me
The kernel New Kernel failed to connect to the front end. (Error = MLECONNECT). You should try running the kernel connection outside the front end.
when trying to start its kernel.