I use stable edition of qubes for about one year. I have one win10 standalone vm installed with the help of script: https://github.com/elliotkillick/qvm-create-windows-qube
All features regarding safe copy, exchange of files between vm’s worked fine. Usually I have been starting win 10 with qvm-start and qvm-start-gui commands in dom terminal. Today qvm-start results in error "cannot connect to qrexec agent for 300 seconds, see (…) log. Log file is empty. It is possible to use command qvm-start-gui and see for a while that windows booted succesfully but without internet connection and without safe copy and file exchange between vms. After error was shown, windows wm halted.
Please advice what should I check to trace the problem.
Recently Windows had been updated to 20h2 but it work without problems with all features after upgrade, Recently also I have been uninstalled Visual c++ 2017 form Windows installation. I don’t know if it all matters.
I’ve checked that it was possible to use win10 vm after last dom0 update form 16.11.2020. There were no qrexec timeout errors.