Open System Preferences and select Date and Time.
Why am I getting this error?
If you are offline (not connected to the internet) and you see the following dialog when you launch a Creative Cloud 2019 and later app, follow the steps below to resolve this issue.
We are unable to verify your subscription status because, since you were last online and connected to Adobe servers, the local time on your system clock has changed unexpectedly. Assuming you have not intentionally altered the date and time on your machine, this condition typically occurs as a result of automatic time synchronization over an intermittent WiFi connection.
How can I fix this issue?
On your computer, check your network connectivity. If the problem persists, use one of the following procedures (based on your operating system), to stop your system clock from syncing with the internet time and then launch your application while online.
You can turn on the syncing of your computer clock the next time you are online.
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Select the Lock icon in the lower left corner of the dialog.
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Deselect Set date and time automatically and click Save.
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Make sure that you are online and then launch the Creative Cloud 2019 app again.
Else, delete certificates starting with Adobe Intermediate CA and Adobe Content by using Keychain Access or by locking and unlocking keychain.
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Open the Control Panel.
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Select Clock and Region.
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Select Date and Time.
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In the Internet Time tab, select Change settings...
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Deselect Synchronize with an internet time server.
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Select OK.
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Make sure that you are online and then launch your Creative Cloud app again.
If you got this error message when Trend Micro antivirus version 15.0 or earlier is installed and activated on your computer, learn how to fix it.
You can also delete certificates starting with Adobe Intermediate CA and Adobe Content by using Certificate Manager or by restarting Credential Manager.