UDT No hostname displayed

Hello there,

I currently use UDT 3.2.3 and I have a issue with it

I add some nodes manually, and next when I managed ports of my cisco switches with it, I get the ip address but I'm not able to get the hostname no matter what I do.

I try to restart services, server, delete the node, adding it again, poll it several times, no way it doesn't work

Thanks

Valentin