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License fails to update

Article ID: 808, created on Oct 6, 2008, last review on Aug 24, 2015

  • Plesk
  • Plesk Sitebuilder
  • Plesk Billing
  • Plesk Expand
  • Operations Automation
  • Business Automation
  • Odin Business Automation Standard
  • Plesk Automation 11.5
  • Virtuozzo 6.0
  • Virtuozzo containers for Windows 4.6
  • Virtuozzo hypervisor
  • H-Sphere


If you use any of the following product versions:

  • Plesk for Linux 7.1-8.2.1
  • Sitebuiler for Linux 1.x-2.1.3
  • Virtuozzo containers for Linux 2.6.1, 3.0.0

and have issues with license update, refer to this article:

  • 126447 License fails to update or upgrade (legacy product versions)

For other products and versions, please see the resolution below.


The product license fails to update. The following errors may occur:

Licensing Server Unreachable: Unable to connect with licensing server.
Please make sure that your network allows communication to
For more details check system help pages.


Couldn't resolve host name


Can't connect to (Timeout)


The product tries to connect to the license server at port 5224 to update the license, but it cannot establish a connection.


On December 1, 2014, the IP address of the license server was changed to (IPv4) and 2001:67c:730::80 (IPv6). Make sure that the hostname resolves to the proper IP from your server:

# nslookup

If the license server does not resolve to the correct IP, check the /etc/hosts file.

If any of these servers are behind a firewall and old IP addresses of Key Administrator are listed in the firewall rules, please add new IP addresses of Key Administrator to the firewall rules to allow your servers to connect to This can be checked with these commands, depending on your OS:


# nmap -P0 -p5224
# telnet 5224
# traceroute


telnet 5224


Note: Telnet Client should be installed additionally for Windows -> how to install Telnet Client

If you are using the APF firewall, check /etc/apf/allow_hosts.rules for the mentioned IPs or the hostname

Search words:

cannot retrieve keys

fail to retrieve keys



Unable to connect with licensing server

license trial plesk

Couldn't resolve host name

Unable to access Plesk

licences vps

Please activate the plesk panel key


License key is not prolongated yet

Key Update Status License key is not prolongated yet

AGAIN Problem with Key-Update after new license

retrieve keys

SiteBuilder License expired

license fails to renew

grace period

Warning: You are currently operating within the grace period of your product license. To update your product license, select the Retrieve Keys option on the License Management page.

Problem with the SSL CA cert (path? access rights?)(77)

Unable to update the license automatically

cannot access provider cp


The license key is invalid. In order to use Panel, you need to obtain and install a new valid license key. Your license key has expired. To continue using your Panel, you must purchase a non-expiring commercial license key.

"Unable to connect to license server cURL error description: Failed to connect to port 5224: Timed out(7) "

Plesk license doesnt avaliable

Error updating License

The product license key has expired. Please contact your service provider for assistance.

Unable to connect to license server cURL error description: Couldn't resolve host name(6)

Retrieve keys does not work

Cannot retrieve the license key

can not activate license

grace perios expired need updated license

telnet ka.parallels

Key Update Status Unable to connect to license server cURL error description: couldn't connect to server(7)

retrieve key failed plesk

automatic licnse update not working

plesk key

a914db3fdc7a53ddcfd1b2db8f5a1b9c 56797cefb1efc9130f7c48a7d1db0f0c fad6dc0c8e983c17ae70a51ac7952cd0 198398b282069eaf2d94a6af87dcb3ff caea8340e2d186a540518d08602aa065 f213b9fa8759d57bee5d547445806fe7 6311ae17c1ee52b36e68aaf4ad066387 a26b38f94253cdfbf1028d72cf3a498b 2897d76d56d2010f4e3a28f864d69223 5356b422f65bdad1c3e9edca5d74a1ae 400e18f6ede9f8be5575a475d2d6b0a6 d02f9caf3e11b191a38179103495106f 614fd0b754f34d5efe9627f2057b8642 8760abb54be64bdc3c8805b6572624e8 0dd5b9380c7d4884d77587f3eb0fa8ef 08b3edb77202fffdd656b40acff117c1 c62e8726973f80975db0531f1ed5c6a2 33a70544d00d562bbc5b17762c4ed2b3 e0aff7830fa22f92062ee4db78133079 6c20476fe6c3408461ce38cbcab6d03b 965b49118115a610e93635d21c5694a8

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