cDAQ Reserved by Another Host

Updated Apr 3, 2018

Reported In


  • CompactDAQ Controller


  • Measurement & Automation Explorer (MAX)

Issue Details

I am trying to use my cDAQ for Data Acquisition but I cannot get access to my cDAQ in NI MAX. When I try to access my DAQ I encounter a message which states that: 'the chassis is already in use by another host computer on the same network, you cannot run any measurement tasks on the chassis'.

How can I fix this issue and get control of my DAQ?


If you are receiving a message saying that the chassis is being reserved by another host, the solution is to reserve the chassis. You can do this by either right clicking on the chassis and select Reserve Chassis. This terminates any tasks being run by another host machine. Alternatively you can use the Reserve/Unreserve chassis button highlighted below.