This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(198.4, 54%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EM%3C/text%3E%3C/svg%3E)
Hello!
I am attempting to use Azure AD connect to sync our users passwords as currently they have one password for O365 and generally a different password for their domain computer.
Problem i have run in to is the domain on our on prem domain servers was named differently then our O365 domain.
when i launch Azure connect from domain controller i get ".....is not a routable domain. it is recommended to use custom settings to configure user sign-in options"
What are my options here besides going thru an entire rename of our 2 DC which would then render our domain computers useless at least for x amount of time.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(195.2, 0%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVM%3C/text%3E%3C/svg%3E)
@MReed Let us know if the answer provided by michev helped you, if it did, please do not forget to accept it as answer for the benefit of community.
You can add UPN suffix(es) and change the UPNs of your users accordingly. Here's a sample article: https://learn.microsoft.com/en-us/microsoft-365/enterprise/prepare-a-non-routable-domain-for-directory-synchronization?view=o365-worldwide
Thank you Michev. Excellent news regarding ability to modify UPN. additional question for you; would you recommend Azure Cloud connect over Azure Connect?
What would be the main reason i would use Azure Cloud over Connect?
That depends on your needs, there's a comparison article here: https://learn.microsoft.com/en-us/azure/active-directory/cloud-sync/what-is-cloud-sync
Cloud sync is the way forward, but currently it has no support for important scenarios such as writeback, Hybrid, device sync, so if you use any of these, you should stick to AAD Connect.
Thank you. One last question. Once Azure connect is up and functioning, it appears we need to upgrade our version of Azure to Prem 1 or 2 to enable password writeback to start functioning?
That's a separate feature and requires AAD Premium license, yes.
ok great. thanks. almost there! appreciate your guidance and have a great weekend.