Hi,
Thanks for posting in Microsoft MECM Q&A forum.
In order for the Managent Point to fuction in a non trusted forest ensure that an account has been specified with the apropriate access to the Configuration Manager database: Management Point connection account. If this step is missed you will see the following logging in mpcontrol.log – “’logon failed. The logon is from an untrusted domain and cannot be used with Windows authentication”
The management point uses the Management Point connection account to connect to the Configuration Manager site database. It uses this connection to send and retrieve information for clients. The management point uses its computer account by default, but you can configure a user account instead. When the management point is in an untrusted domain from the site server, you must specify a user account. Create the account as a low-rights, local account on the computer that runs Microsoft SQL Server.
The "SQL Native Client 11 Login Failed" error is the same as the guidance:
Cross Forest Support in ConfigMgr 2012 Part 3: Deploying Site Server / Site Systems in an Untrusted Forest.
Best regards,
Simon
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