If the error shown here is encountered on the client computer after installing an updated version of the Key software.
Then please update the Network Server licence manager with this link: - Updated Licence Server
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You may need to rename the following folder for a successful update.
C:\Program Files\Common Files\Transoft Solutions\Licensing
If completed correctly, the front end will have the extra section at the bottom as shown below
Also Note: - the server service may in some circumstances need to be stopped to update with this link.