Drserver connection problem ( yes again )

I’ve been trying for eight hours, but I can’t figure it out.

not a hardisk problem…

Cannot save temporary DR scene to:
Modified on: Thu, 22 Oct, 2015 at 5:27 PM

Cannot save temporary DR scene to:

This message means Corona was unable to save temporary distributed rendering scene file on the master machine. Default scene saving location is:

C:\Users\AppData\Local\Autodesk\3dsMax\2016 - 64bit\ENU\en-US\plugcfg\corona

Possible causes:

An internal error occurred when attempting to save temporary DR scene file.

Solutions:

Make sure you have enough free hard drive space
In case you have enough hard drive space, please report this problem at: https://forum.corona-renderer.com/ or submit a new support ticket

Same problem

the same thing happened on my other machine..Two of the 6 machines do not start drserver.I had no problems in the previous version.I moved to 3dsmax 2020, could it be related?

ı try to this solution ( same warnings )

https://forum.corona-renderer.com/ DR Server not picking up

But it doesnt work :(((