Configuring a multi forest sync solution for a single Office 365 tenant is pretty straightforward, but there are a few small tiny gotcha’s:<\/p>\n
1. DNS resolution is critical, adding a few host file entries won’t do the trick, use a (conditional) forwarder to a DC for each forest If you don’t, you’ll probably run into this error:<\/p>\n Configuring a multi forest sync solution for a single Office 365 tenant is pretty straightforward, but there are a few small tiny gotcha’s: 1. DNS resolution is critical, adding a few host file entries won’t do the trick, use a (conditional) forwarder to a DC for each forest 2. Ensure the proper firewall ports are … Continue reading Azure Active Directory Connect with Multiple Source Forests: The specified domain does not exist or cannot be contacted<\/span>
\n2. Ensure the proper firewall ports are open<\/a>
\n3. Ensure you type your login in the netbios format and include the suffix, e.g.: LIEBEN.NU\\Admin, using LIEBEN\\Admin will fail<\/p>\n[ERROR] Caught exception while validating the domain credentials and retrieving domain FQDN of the specified user XXXX.XXX\\Admin.\nException Data (Raw): System.DirectoryServices.ActiveDirectory.ActiveDirectoryObjectNotFoundException: The specified domain does not exist or cannot be contacted.\n at System.DirectoryServices.ActiveDirectory.Domain.GetDomain(DirectoryContext context)\n at Microsoft.Online.Deployment.Framework.Providers.ActiveDirectoryProvider.ValidateUserCredentials(String domainName, String username, SecureString password, String& domainFqdn)\n at Microsoft.Online.Deployment.OneADWizard.UI.WizardPages.ConfigSyncDirectoriesPageViewModel.ValidateADDirectoryConnection(DirectoryConnectionViewModel connection)<\/pre>\n","protected":false},"excerpt":{"rendered":"