AADConnect password sync error

So, long time since the last post. Its been a long an very hot summer, and things are starting to turn back to Business as usual Confused smile.

I started up my lap environment, after a good long vacation, and wow and behold…. AADConnect errors Sleepy smile I needed the lab for some testing…. Oh well, time for an article then.

After booting up, and some time to sync, this messages appeared in the O365 portal



Disappointed smile….. Didn’t make much sense to me… “Last synced 31 minutes ago”, but “warning no recent synchronization” ???

Didn’t spend to much time investigating, figured it had something to do with the whole environment being shutdown for a month, so went straight to try and fix it…My thoughts where, that trying to disable, do a sync and then re-enable password sync, would be a good place to start.

Here we go Open-mouthed smile

Started the AADConnect wizard


Choose “Configure”, and then “Change user sign-in”


So, log on with your Tenant global admin cred’s


Set the option to “Do not configure”




And then “Configure”. Just to make sure it actually was synchronizing, I ran the PowerShell sync cmdlet

Start-ADSyncSyncCycle -PolicyType delta

After it was successful (Had to run it a couple of times, since the reconfiguration of AADConnect, initiates a Complete sync, which takes some time) I reconfigured AADConnect to again allow password hash sync.


Enter your O365 tenant credentials if prompted!



After id was done, I waited a good 5 minutes for the initial sync, and then ran the PowerShell cmdlet again

And the waiting game started. It can take some time for O365 to realize that you actually did something, so after about 15 minutes everything looked fine again.



Pretty easy fix Smile


6 thoughts on “AADConnect password sync error

  1. An impressive share! I’ve just forwarded this onto a coworker who was conducting a little homework on this. And he in fact ordered me lunch simply because I discovered it for him… lol. So allow me to reword this…. Thanks for the meal!! But yeah, thanx for spending the time to discuss this subject here on your website.

    Liked by 1 person

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.