1,452 questions
Hi, your Exchange Oauth cert is expired. Please recreate it:
How to fix error Exchange 2016 server for accessing owa: [ExAssertException: ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length<1]
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Anonymous
Exchange | Exchange Server | Other
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(246.4, 22%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKY%3C/text%3E%3C/svg%3E)
Kael Yao 37,746 Reputation points Moderator2023-06-13T01:20:18.1+00:00 Hi @Anonymous
Just checking in to see if above information was helpful.
Please let us know if you would like further assistance.
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Anonymous
2023-06-13T08:22:05.25+00:00 I created the certificate, but after running below command
Set-AuthConfig -NewCertificateThumbprint 235DA5B84B544EB5A12CBEDE033D14A7276A334F -NewCertificateEffectiveDate (Get-Date)
it says it wont be effective until 48 hours but I created the certificate 7 days back still I am unable to access owa and says thumbprint was not found when I ran the command
[PS] C:\Windows\system32>(Get-AuthConfig).CurrentCertificateThumbprint | Get-ExchangeCertificate | Format-List A special Rpc error occurs on server SEE-WV-A351: The certificate with thumbprint 6140CDD312623B68B2B77AE35839D11D9C02F77F was not found. + CategoryInfo : NotSpecified: (:) [Get-ExchangeCertificate], InvalidOperationException + FullyQualifiedErrorId : [Server=SEE-WV-A351,RequestId=f7a21651-2865-4e7e-805c-1ee26589e788,TimeStamp=6/13/2023 8:21:13 AM] [FailureCategory=Cmdlet-InvalidOperationE xception] 72000DEC,Microsoft.Exchange.Management.SystemConfigurationTasks.GetExchangeCertificate + PSComputerName : see-wv-a351.seeexchange2016.com -
Kael Yao 37,746 Reputation points Moderator
2023-06-13T08:33:12.9033333+00:00 Did you publish the certificate?
Set-AuthConfig -PublishCertificate Set-AuthConfig -ClearPreviousCertificate -
Anonymous
2023-06-13T09:03:33.4133333+00:00 yes, I have run all commands as per document
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Anonymous
2023-06-13T09:51:42.32+00:00 Hi, Is there any update? what am I missing?
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Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator2023-06-13T13:00:59.74+00:00 I would start over and create a new one if possible. Do you have multiple servers?
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Kael Yao 37,746 Reputation points Moderator
2023-06-19T05:59:40.1266667+00:00 Hi @Anonymous
Have you tried created a new certificate?
If you still need help on this issue, please feel free to post back.
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Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
2023-06-12T11:25:11.7133333+00:00