I try to update NIU-Firmware. After cnbsi I will be logged off (normal). Then I can not reconnect to MD110. After sending SSSSSSSSSSS; no reaction. But I have access to NIUXX and I can see, that the new firmware is loaded. After removing and reinserting NIU access to MD110 is ok. again, but then old firmware is reactivated (normal)... What to do?