"Unable to download any virtual appliance." error message appears when trying to download any virtual appliance from the Parallels Wizard:
Unable to connect to the Parallels Appliances server.
Error while downloading
- Make sure that you have stable internet connection on your Mac.
Open Terminal.app and execute:
- Make sure that the address is resolved and you receive response from the server.
- If you cannot connect to
download.parallels.complease check DNS settings and make sure that port 443 is opened for TCP protocol (FireWall settings).