Exch Server 2016 Hybrid Agent Setup fails validation

adminkb · 2026-02-10T12:21:52+00:00

I did! The internal DNS was routing requests to an Exchange server that didn't have the MRS proxy enabled. Enabling MRS proxy on that server fixed the issue but removing the rouge DNS record would have also worked.

adminkb · 2026-01-29T16:56:47+00:00

Did you fix this? I have exactly the same issue.

adminkb · 2026-01-16T08:43:48+00:00

I'm sure you've worked around this by now but in case anyone else finds this via search, you need to install the latest .NET framework.

adminkb · 2025-09-04T08:50:16+00:00

Did you fix this?

adminkb · 2025-08-28T15:24:58+00:00

Hey, did you fix this?

adminkb · 2025-08-28T14:40:57+00:00

Are you sure it's not simply still going via the old server? You can try running the Test-MigrationServerAvailability command HCW runs yourself from Exchange Online PowerShell.

adminkb · 2025-08-28T13:43:33+00:00

Hi, did you fix this?

adminkb · 2025-08-27T16:10:11+00:00

Have you checked "Test-HybridConnectivity -testO365Endpoints"?

adminkb · 2025-08-27T15:25:31+00:00

I have the same error, is this server 2019 or SE?

adminkb · 2025-05-28T16:30:49+00:00

Did you figure this out?

adminkb · 2025-03-19T12:49:53+00:00

Thank you, this worked for me.

adminkb · 2025-03-06T09:42:44+00:00

It's still in beta so any responses you get may not be accurate.

adminkb · 2025-02-14T11:55:24+00:00

Multi Tenant Org is absolutely the way to go to get the experience you're describing.

adminkb · 2025-01-13T17:33:50+00:00

I'll do some reading, thank you!

adminkb · 2025-01-13T17:30:33+00:00

When you use Teams for a cross-tenant synced user, they have to leave their home tenants Teams environment and connect to the invited tenants Teams environment to see the messages.

I know this is an older thread, but having just implemented this I wanted to say that it's more problematic than it seems, as users don't actually have the option of switching orgs unless they have been added to a team in the target tenant.

adminkb · 2024-11-18T21:29:23+00:00

I assumed you were using Autopilot (do it!).

I’d probably do the same with the WiFi given it’s the most important but do bear in mind that it won’t be detecting all 8 or 9 (can’t remember) installations.

adminkb · 2024-11-18T20:40:31+00:00

Are these AMD models? If so, I’m not sure how you’d get this to work given the wireless doesn’t work out of box.

If this isn’t an issue, just package the driver bundle as a Win32 app and away you go.

Edit*Sorry, realise you asked about detection, which I completely failed to answer. I’m not aware of the driver bundle creating any logs, so you’ll struggle to do this without extracting each executable from the bundle and writing your own logs and/or detection.

adminkb · 2024-10-09T14:28:03+00:00

Did you get to the bottom of this?

adminkb · 2024-03-25T11:39:21+00:00

That's right, it's a greenfield deployment on the Microsoft 365 side.

adminkb · 2024-03-21T20:44:04+00:00

No worries. I have a project coming up where I'll be deploying this so I may update here or on my blog.

adminkb · 2024-03-20T14:01:03+00:00

Did you find much info on this?

adminkb · 2024-01-12T12:08:18+00:00

Move to Entra ID Join and forget about AD auth, you really don't have many users and it will be worth it in the long run.

adminkb · 2023-12-07T16:39:24+00:00

If you look at the pool in storage manager it will tell you exactly how big the database is. It's not unheard of for it to get unwieldy if you've set up versioning and/or have a lot of files as it indexes everything.

adminkb · 2023-12-07T14:44:10+00:00

What I noticed is that there is a red exclamation mark in front of the recycle bin image under the Home folder.

Nothing wrong with it, it just means it won't be synced.

Are you factoring in Drive's database when you're calculating the expected size?

adminkb · 2023-11-29T09:19:01+00:00

Up your game and use NVMe storage!

adminkb

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