question

Mick-Mooney avatar image
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Mick-Mooney asked KyleXu-MSFT commented

Unable to validate Hybrid Agent for Exchange usage

Morning folks,

I'm having an odd issue with setting up an exchange hybrid configuration between exchange 2010 sp3 and exchange online via the latest version of the Microsoft Hybrid Configuration Wizard:


91116-fail.jpg


I have also run a hybrid connectivity test to Microsoft 365 endpoints, and am getting an issue reported when testing against https://nexus.microsoftonline-p.com on port 443:


91117-test.jpg



All advise and direction is welcomed.

Thanks,
Mick

office-exchange-hybrid-itpro
fail.jpg (25.0 KiB)
test.jpg (65.7 KiB)
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AndyDavid avatar image
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AndyDavid answered
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Mick-Mooney avatar image
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Mick-Mooney answered

Can confirm TLS 1.2 is enabled.

If it wasn't, the hybrid connectivity test would have reported a TLS error.

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AndyDavid avatar image
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AndyDavid answered

One trick is to force TLS 1.2:
Can you run this command before performing the hybrid connectivity test?

 [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12


Also, you have prob seen:

https://docs.microsoft.com/en-us/exchange/troubleshoot/hybrid-configuration-wizard-errors/the-underlying-connection-was-closed-error

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Mick-Mooney answered KyleXu-MSFT commented

Thanks for the advised and it has worked to allow the test to successfully complete.

91323-image.png




I've ran the Microsoft Hybird Config Wizard again however, I'm still getting the same error.

Regrettably the error message has no relevant info I can use to trouble shoot in it.


image.png (138.9 KiB)
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Can you check the hybrid logs at:
%AppData%\Microsoft\Exchange Hybrid Configuration

or
%UserProfile%\AppData\Roaming\Microsoft\Exchange Hybrid Configuration



Also, anything in the event logs on the server you are running this from at that time?



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Any update about this thread?
Do you find related logs? If you find related logs, you can post it at there after removing privacy information.

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