O365 AD Sync problem

[Disease]

Hi all,

 

We have just changed our ISP to a new provider with a new External IP and now my AD sync has stopped working, is there some configuration I need to change to get it back to working?

 

Cheers in advance.

[DJ-1701]

Odd, I didn't have an issue back when we were using DirSync, so there shouldn't be a problem.

 

I assume your new provider allows access by default as I hope most do by now.

 

https://docs.microsoft.com/en-gb/azure/active-directory/hybrid/reference-connect-ports

https://docs.microsoft.com/en-gb/microsoft-365/enterprise/urls-and-ip-address-ranges?view=o365-worldwide

[DJ-1701]

I do remember having an issue at one point though when we had https filtering... had to ensure the server was using the non-ssl filtering proxy.

[Disease]

So could be the new Smoothwall appliance blocking something then.

[Jcx500]

we had a proxy defined in the NET 4 Machine.config File

 

c:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config

Edited September 2, 2020 by Jcx500

[Davit2005]

Can you try and connect to the Azure admin portal with the account that is used in Azure AD connect?

[HPlum78]

https://docs.microsoft.com/en-us/azure/active-directory/hybrid/tshoot-connect-connectivity

 

If you are behind a proxy take a look at the above.

[Disease]

we had a proxy defined in the NET 4 Machine.config File

 

c:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config

 

Exactly this, thanks for the help guys.