Parallels license fails to update

[Vinil]

Hi,

Recently I have experienced an issue regarding Plesk license update, which  I would like to share with you.
When the parallels tries to update the license from the panel, fails with the following error:

Couldn't connect to server
or
Can't connect to ka.parallels.com:5224 (Timeout)

This is mostly because of  the Parallels license server with hostname "ka.parallels.com" is not properly resolving from your server. You can confirm this by using following steps:

Code: [Select]

# traceroute ka.parallels.com                   // check outgoing connection to the license server is possible
# nmap -P0 -p5224 ka.parallels.com       // check port 5224 is Open
# telnet ka.parallels.com 5224

So we need to make sure that the outgoing connection to "ka.parallels.com" (with port 5224) is not firewalled on your server or somewhere in your network.

If so, add the hostname "ka.parallels.com" to the allow lists and make sure if the Port 5224 is open.