I also tried opening a workbench file created in a previous version (2020) but it shows it’s not connected to a server for proxy actions, so I think it might as well be a licensing error.
I ran the diagnostics and it shows the below error :
C:\Program Files\ANSYS Inc\v231\licensingclient\winx64\lmutil.exe lmstat -a -i -c email@example.com
lmutil - Copyright (c) 1989-2022 Flexera. All Rights Reserved.
Flexible License Manager status on Thu 7/13/2023 11:17
[Detecting lmgrd processes...]
License server status: 1055@DESKTOP-QE253AB
License file(s) on DESKTOP-QE253AB: firstname.lastname@example.org
lmgrd is not running: License server machine is down or not responding. (-96,7:11001 "WinSock: Host not found (HOST_NOT_FOUND)")
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