Just to let you all know:

When starting a fex over rcaster i got the messages beneath.
1. Task error:ibi.jlink.EdaPcb: Pcb2.: ibi.ngxxj.NGException: local error

and in another try

2. Task error:Server disconnected, cause 32014 Eda code -12

I found the cause of the problem. Due to some other problems which caused a cpu usage of 100% by the tscom3 services. I changed a settings in the Data services. I changed the setting cpu_limit to 70%, to avoid the 100% usage. I did not solve my problem, but caused the earlier mentioned messages in the rcaster.