Updated November 16, 2016
This article provides brief information and steps to resolve the issue when there is no response to adding nodes to UDT.
UDT version 3.2.4
The nodes added are assigned to an additional Poller which either does not have UDT installed, or does not have a similar UDT version compared to the main Poller.
Install/Upgrade UDT on the Additional Poller (Recommended).
Transfer the node to the Main Poller where UDT is installed.