Ensure that you’re connected to the Internet and that your computer's date and time are correct and then click Try again.
Last updated on
22 Aug 2024
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Also applies to Adobe Creative Cloud
An inaccurate computer system clock can cause activation problems. Did you reset your computer’s date and time recently? Check that your computer's system clock displays the correct date and time, and is set to the correct time-zone.
The message indicates that your Creative Cloud app does not launch because there appears to be a mismatch between the clock on your computer and the Adobe servers.
Time-related errors, for example error 251, may also be displayed if you roll back the clock in an attempt to extend an app trial.
Resolution
To resolve this issue, do the following:
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For detailed instruction on setting the system clock, see
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If the issue is not related to your computer's date and time, see Resolve connection errors for instructions on how to reset your host file.