There is no possibility to register a copy of Parallels Desktop, Parallels Access or Parallels Toolbox, a message say to check your Internet connection. Even though the Internet is working fine, registration is still not working.
Third-party antivirus/firewall application blocks connection to the Parallels registration server
Mac operating system may have a faulty registration domain listed in your local hosts file which prevents Parallels Desktop to register.
- Port 443 is blocked by network security settings/firewall or on the company's server due to security restrictions.
In order to resolve the issue follow the steps below:
Temporarily disable firewall/antivirus application installed on the Mac according to its manufacturer instructions. It's strongly advised to restart the Mac to apply changes. If disabling firewall/antivirus won't help, temporarily remove the application.
NOTE: Add Parallels Desktop application to firewall/antivirus exclusions so the issue won't happen again in the future.
If you have proxy turned on in your Mac - please turn it off at:
For proxy settings:
1) Please contact you system administrator for assistance.
2) Disable proxy in System Preferences - Network - Active connection - Advanced... - Proxy
And restart your Mac.
Open Applications -> Utilities -> Terminal and paste the command below as is and hit Return:
Examine the output for similar entries:
127.0.0.1 pdfm.blist.parallels.com 127.0.0.1 pdfm.vl.parallels.com 127.0.0.1 account.parallels.com 127.0.0.1 desktop.parallels.com
In case such entries are present in your hosts file, remove them. To do it:
In Terminal execute another command (copy and paste it into Terminal as is.):
sudo perl -pi -w -e 's/(?:[A-Za-z0-9-]+.?)*parallels\.com/#/g;' /etc/hosts
NOTE: You will need to enter your Mac password to run the command. No symbols will be shown due to security measures, so just hit the keys and use Return/Enter.
- Close Terminal window and try registering Parallels Desktop again.
To check status of 443 port, do the following:
- Open Spotlight > type Network Utility > open Network Utility.app
Switch to 'Port Scan' tab > enter one of the following addresses:
Enable 'Only test ports between' option > enter ports 443 and 443 and click Scan:
If the port is opened, the output will be:
Open TCP Port: 443 https
If this message does not appear, please do the following:
a. Reconfigure network settings/contact IT administrator.
b. Use different type of connection (e.g. a mobile device as a hot spot).