Graeme Gill wrote: > Possibly. What is the debug output (spotread -D6) output when > it fails ? OK, I tried it now without the USB Hub and the -D6 option activated. There are still errors: --- munki: GetStatus munki: GetStatus failed with ICOM err 0x200 read_sample returned 'Communications failure' (Communications failure) Sample read failed due to communication problem. Hit Esc or Q to give up, any other key to retry: --- What should I try next? Regards, Juergen