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Troubleshooting MSM Logins
When logging into the control panel, users are logged in to the initial site instead of the specific site they need to work in.
Allowing logins to each Site's Control Panel
Adding the admin.php file to each Site allows users to login directly to that Site's Control Panel. This is a similar method to masking access to the Control Panel.
Add the following code to path.php:
$cp_url = 'http://example.com/admin.php';
Note: Clear browser cookies in order for these changes to be used by the browser.