# OAuth login not initiating

**Symptoms:** The OAuth browser window never opens, or authentication appears to hang.

**Cause:** dbt MCP uses a lock file to avoid repeated authentication. If a previous session left the lock file in place, it can block new authentication attempts.

**Solution:**

1. Close your MCP client (Claude Desktop, Cursor, VS Code, etc.).

2. Delete the self-hosted dbt MCP config files:

   * macOS/Linux: `rm -f ~/.dbt/mcp.yml ~/.dbt/mcp.lock`
   * Windows: `Remove-Item -Force $env:USERPROFILE\.dbt\mcp.yml, $env:USERPROFILE\.dbt\mcp.lock`

3. Restart your client and try connecting again.

If these steps don't resolve the issue, confirm that AI features are enabled on your account. An account admin can enable them in **Account settings** → **Edit** → toggle on **Enable account access to dbt Wizard features**. Refer to [Enable dbt Wizard](../../../docs/platform/manage-dbt-ai.md).