vray could not obtain a license -7

[ntavian]

hey Vray support, could somebody please let me know what this error message means, I have never seen it before
3ds max adapter error: Autodesk 20.0 reported error [Vray] could not obtain a license (-7) the ChaosGroup License Server is denying access, Update the license server and check filter (if any)
I reinstalled the license to this version (cgls_win_5.4.0) but that did not solve the problem
please let me know what I should try

TIA

[ivan.slavchev]

You should check the license settings - https://docs.chaosgroup.com/display/...cense+Settings
The render nodes should point to the license server address and TCP port 30304 must be allowed. A simple test is to run a scene locally on the render nodes to see if they can obtain a license.

If you still have a problem after please message us here - https://www.chaosgroup.com/support/contact