March 2020 significant update to Hybrid Configuration Wizard

Yes yes 🙂

Finally the new HCW is here, fixing a lot of stuff, most importantly the OAUTH failueres you see, when you finish the HCW installer 🙂

Release notes:

  1. HCW will no longer enable Federation Trust by default for all installations. Instead, it will only enable Federation Trust if there are Exchange 2010 servers on premises. HCW will call Get-ExchangeServer and if no Exchange 2010 servers are reported, the workflow to enable Federation Trust and subsequently require domain proof will not execute. Note that organization relationships are still created.

  2. When uninstalling the hybrid agent and switching to Classic in the HCW, this action would sometimes fail with a “null reference” error. We have fixed this!

  3. How many of you have hit the HCW 8064 error – unable to configure OAuth, and subsequently had no idea why OAuth failed to configure? Yes, we heard you loud and clear! In this release, we have completely changed the way we enable and configure OAuth. Instead of enabling OAuth at the service layer, we now enable OAuth via a Graph API under the context of the Tenant Admin. This in turn removes the error obfuscation we had with the service layer enablement and allows us to include a detailed error entry in the HCW log. So while you still see the HCW 8064 error in the HCW UI, you can now review the log for the specific error detail which will make it easier to troubleshoot and resolve.

  4. When verifying DNS, we had a fallback mechanism that would reach out to an external site to verify domains. While this fallback mechanism was rarely hit, we received overwhelming feedback to not use this mechanism/site as it was not listed in our IPs & URLs web page. We have removed that fallback and now only use the endpoint “mshybridservice.trafficmanager.net”, which is listed in our endpoints documentation.

Download HCW here: http://aka.ms/hybridwizard

Source: https://techcommunity.microsoft.com/t5/exchange-team-blog/march-2020-significant-update-to-hybrid-configuration-wizard/ba-p/1238753

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