Hi,
There is a way to check for sure if NoMachine is a reason for this issue or not. For that, you need to unregister the “NoMachine USB Hub Filter”.
Steps to do:
1. Open Windows registry: Menu Start -> run -> regedit
2. Find the following registry key in the tree on the left:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\36fc9e60-c465-11cf-8056-444553540000
3. Find the UPPERFILTERS variable on the right side. Edit UPPERFILTERS variable and remove “nxusbf”.
4. Reboot the Windows machine.
5. Check UPPERFILTERS, to make sure that “nxusbf” is not registered. USB devises forwarding won’t work anymore.
6. Wait to check if the freezing occurs.