Windows Integration Errors

Fix Microsoft Remote Desktop for Mac Error 0xc07 with Active Directory

Adam Davis Oct 1, 2026 868 views

Question details

The user is unable to connect to a Windows server using an Active Directory break-glass account via Microsoft Remote Desktop for Mac, encountering error code 0xc07.

How to Fix Microsoft Remote Desktop for Mac Error 0xc07 with Active Directory

Product: Microsoft Remote Desktop for Mac
Device & OS: macOS 13.6.6
Scenario: Attempting to establish a remote connection to a Windows server using an emergency Active Directory account.
Observed behavior: The connection fails with error 0xc07 on the Mac client, despite the same emergency account working perfectly from a Windows virtual machine and regular accounts working on the Mac.

Before you start

Ensure your Mac is connected to the correct corporate network or VPN required to reach the Active Directory domain controller.

Solution 1Recommended

Clear Keychain Credentials and Use FQDN

Resolves authentication conflicts by removing outdated cached credentials and using the full domain format during login.

macOS sometimes caches faulty credentials or struggles with traditional Windows domain formatting, leading to authentication errors like 0xc07. Clearing the keychain and standardizing the login format usually resolves this.

Remove the Saved Connection

Open Microsoft Remote Desktop for Mac, locate the problematic saved PC connection in your list, right-click it, and select 'Delete'.

Clear macOS Keychain

Open 'Keychain Access' from your Mac's Utilities folder. Search for the server name or domain, and delete any associated saved passwords to clear corrupted authentication data.

Recreate the Connection

Return to Microsoft Remote Desktop and click 'Add PC' to create a fresh remote connection profile.

Enter FQDN Format

When adding your user account credentials, use the Fully Qualified Domain Name (FQDN) format (e.g., username@domain.com) instead of the standard domain prefix (DOMAIN\username).

Format Tip: Using the FQDN format often bypasses domain resolution and authentication issues specific to the macOS Remote Desktop client.

Solution 2

Collect Client Logs for IT Support

Use this method if recreating the connection fails, to help identity administrators diagnose server-side account policies.

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Frequently Asked Questions

What does Error 0xc07 indicate in Microsoft Remote Desktop for Mac?

This error typically points to a network or authentication failure, often related to how the Mac client resolves the Active Directory domain or processes stored credentials.

Why does the Active Directory account work on a Windows VM but not natively on macOS?

Windows and macOS handle network authentication and Active Directory domain mapping differently. If the Mac client cannot correctly parse the domain prefix or has corrupted Keychain entries, the connection will fail even if the account itself is active and correct.

Should I use a specific username format when connecting from a Mac?

Yes. When encountering login errors on macOS, it is highly recommended to use the Fully Qualified Domain Name (FQDN) format, such as user@yourdomain.com, rather than the traditional DOMAIN\user format.

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