Symptom

When trying to activate BarTender, you may receive the following error message:

Either the time difference between local computer and Activation Server is too large, or the activation code is outdated.

Applicable to

BarTender 2019 and later

Solution

It is highly likely that the Windows machine's time and date are not properly synched when encountering this issue. The Windows user will need to re-synch the time and date in order to correctly activate this machine.

If you are not familiar with how to do this, please reach out to your IT department.