Onsite Exchange O365 Hybrid, Basic Auth

[Jawloms]

Morning,

 

We have an onsite Exchange server. Quite sometime ago I set it up as Hybrid and did some testing with moving mailboxes up to the cloud. Due to reasons it has been largely ignored since then. I have now picked it up again. When using the Management Console onsite, there is an entry at the bottom labelled "O365" which I used to be able to click on and it would ask for credentials and then connect to O365. It no longer works due to MS turning off Basic Authentication...... which is fair enough.

 

I am struggling to find what I do to make it work again as Googling any term which has "Hybrid" within it just gives me results about Modern Hybrid authentication, and leaving the word Hybrid out just gives me hundreds of results all saying they are turning off basic auth, or how I can turn it off early.

 

How do I make them talk again please?

 

Thank you

 

Stuart

Edited January 9, 2023 by Jawloms

[kevin_lane]

Morning,

 

We have an onsite Exchange server. Quite sometime ago I set it up as Hybrid and did some testing with moving mailboxes up to the cloud. Due to reasons it has been largely ignored since then. I have now picked it up again. When using the Management Console onsite, there is an entry at the bottom labelled "O365" which I used to be able to click on and it would ask for credentials and then connect to O365. It no longer works due to MS turning off Basic Authentication...... which is fair enough.

 

I am struggling to find what I do to make it work again as Googling any term which has "Hybrid" within it just gives me results about Modern Hybrid authentication, and leaving the word Hybrid out just gives me hundreds of results all saying they are turning off basic auth, or how I can turn it off early.

 

How do I make them talk again please?

 

Thank you

 

Stuart

 

I’m not 100% sure but I think you would have to do this from the office 365 admin portal to specifically turn it back on - obviously they turned it off as it’s deemed a security risk - and then I’m guessing you would have to wait for it to work.

 

How long I’m not sure

[3s-gtech]

Do you need it? I just have the two in separate tabs, opened independently.

[Jawloms]

I'm not after turning it back on, rather making the Exchange MMC work with the accepted auth methods.

 

I do need it to all work as otherwise I can't migrate anymore mailboxes from onsite to the cloud.

 

It looks like I just need to the latest version of the Hybrid Configuration Wizard (thanks to my own tech for this.....) to get it sorted.

 

Stuart

[3s-gtech]

The wizard *should* update itself when run (mine did yesterday!)

[Jawloms]

Now updated and it's giving me;

 

[3s-gtech]

Anything getting in the way of the traffic? That should definitely connect straight through - and very quickly (takes much longer to connect to the onsite server!)

How's your whitelisting for M365?

[kevin_lane]

Now updated and it's giving me;

 

[ATTACH=CONFIG]67686[/ATTACH]

 

 

Try changing this reg key below

 

HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WinRM\Client

 

Find the DWORD named Allow Basic and if it’s set to 0 change it 1

 

Obviously take a backup of your reg before you make the change

 

Maybe a reboot wouldn’t go amiss and try again