9,627 questions
Hi anonymous userLab8,
Have you tried to change the network profile from private to public?
Office activation - Error code CAAC0003
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DaveL
1
Reputation point
I recently migrated a client from Office 365 commercial to GCC High. All users are now getting the following message when attempting to activate/sign in to Office on their desktops.
Something went wrong. We couldn't sign you in.
Error code: CAAC0003
Server message: Microsoft Azure Government tenant ..... is blocked in Public Cloud.
Selecting Continue seems to push through and activate the product anyways, but why are we getting these messages?
Thanks!
Dave L.
Microsoft 365 and Office Install, redeem, activate For business Windows
2 answers
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T. Kujala 8,761 Reputation points2020-10-21T04:49:21.437+00:00 -
DaveL 1 Reputation point
2020-10-27T22:47:50.777+00:00 That didn't work for me, but did help a co-worker. Thanks!
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Emily Hua-MSFT 27,796 Reputation points2020-10-21T08:31:08.23+00:00 anonymous userLab8 ,
Please refer to TKujala's reply to have a check.In addition, according to the "Server message: Microsoft Azure Government tenant ..... is blocked in Public Cloud.", it seems to be related to Azure AD.
Starting May 5th 2020, users sign into apps hosted in US Government tenants using the public endpoint (microsoftonline.com), this behavior would be blocked.Please check whether the link "Azure Government endpoints are changing" is helpful.
More questions about Azure AD, please add the related tag on your threads.
If an Answer is helpful, please click "Accept Answer" and upvote it.
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.-
DaveL 1 Reputation point
2020-10-27T22:53:26.587+00:00 I understand what you a saying but my issue is with Microsoft 365 Apps for Enterprise, not a 3rd party app or home grown app. Somewhere wires are crossed when signing into Office, it directs the sign in to the commercial side. So...I uninstalled Office and reinstalled, and it was then already signed in and activated. No warnings/errors. I signed out, then signed back in.....error message again!!!
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Emily Hua-MSFT 27,796 Reputation points
2020-10-29T09:06:40.86+00:00 anonymous userLab8 ,
Have you deleted the registry key below to have a check?
Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Common\Identity\Identities
(Serious problems might occur if you modify the registry incorrectly. Before you modify it, back up the registry for restoration in case problems occur. Please refer to this article about how to back up and restore the registry in Windows.)
If not, you may try it, then sign account in Office apps.
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