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Parallels license fails to update

Article ID: 808, created on Oct 6, 2008, last review on Jan 5, 2015

  • Parallels Plesk
  • Parallels Plesk Sitebuilder
  • Parallels Operations Automation
  • Parallels Business Automation - Enterprise
  • Parallels Business Automation - Standard
  • Parallels Virtuozzo Containers for Windows 4.6
  • Parallels Server
  • Parallels H-Sphere


The Parallels 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 Parallels 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 Parallels Key Administrator are listed in the firewall rules, please add new IP addresses of Parallels Key Administrator to the firewall rules to allow your servers to connect to This can be checked with these commands:

# nmap -P0 -p5224
# telnet 5224
# traceroute

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

Search words:

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.


Unable to update the license automatically

Unable to connect with licensing server

Couldn't resolve host name


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.

Error updating License

Please activate the plesk panel key

Cannot retrieve the license key

Retrieve keys does not work

can not activate license

License key is not prolongated yet

ERROR: certificate common name “” doesn’t match requested host name “”.

grace perios expired need updated license

retrieve keys

SiteBuilder License expired

automatic licnse update not working

license fails to renew

plesk key

c81e59b61af9dca603ba03b14aabe968 56797cefb1efc9130f7c48a7d1db0f0c 3ab1af55c4b84a70b6e8e87334f3a6ea d475fdc3db14382c01697df7c71c3b94 caea8340e2d186a540518d08602aa065 95bac358bf7af74467f5b357f393e4cf 6311ae17c1ee52b36e68aaf4ad066387 ca05eaf5b843fbd53589c90d7228a6df 2897d76d56d2010f4e3a28f864d69223 64cafed7cc15bceb3b240d8c2f92dce3 4f06e569887915c59ae1fa4680142e7f 909d99074e442b52ce54cc7b31cf065d bb8d08f557ff7e4b314b6bbaa846b034 94ac96f9d7f760c2d56b7d3309290ca8 4542fc1e09dcc36ad9dbfd547b6b7b3c

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