When professional software is installed, the Mircrosoft.net environment is uninstalled. As a result, the VM is not registered during running and cannot be logged in.
Reinstall the Microsoft.net environment and restart the VM. The VM status is Ready.
The ICA protocol requires the proper running of the Mircrosoft.net compiling environment. If the compiling environment is uninstalled, some ICA components cannot run properly. As a result, VMs cannot be registered.