There is a settings in UDT to limit the ports to be monitored. Settings -> UDT Settings -> Advanced Settings -> Monitored Port Types.
If this does not solve your problem, please provide more details on the issue like the products you have installed, whether only UDT import fails or the entire discovery via sdk fails and the steps you follow.
That's what I ended up doing and worked round the issue for now. If we have more issues with automated discovery as it goes live we'll raise it with support.