Plesk Control Panel Issue
“All of a sudden this server‘s control panel license got expired, its a permanent license and we are not sure how it get expired. Please fix this issue ASAP”
Possible Solution
“The problem occurred because of the 5224 port is filtered on the server:
Unable to update key. An error occured while processing your key. You can try to update it later. The key cannot be upgraded due to the network failure during connection with the Key Authority server. Please check that your internet connection is configured, you can resolve and access ka.swsoft.com and your firewall enables outgoing connections to TCP port 5224.
It is required for communication with our licensing server
Currently I installed the license manually. Please, open the port to avoid such kind of troubles in future. For more information: http://kb.parallels.com/en/462“
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