McMaster University

McMaster University

MacID Login

Portions of the ISS-Apps site require logging in using a valid MAC ID and Password.

Please click on the 'Login' button to the left to access the login.

Safari users on a Mac may need to delete cookies if they keep getting redirected back to the login.

Internet Explorer and Firefox users may need to adjust the browser settings prior to login to avoid MacID pop-up window issues.

Configuring Newer Versions of Internet Explorer
  • Go to ToolsInternet Options;
  • Under the General tab click on Settings under Tabs;
  • Under Tabed Browser Settings:, make sure that Always open pop-ups in a new window is selected under When a pop-up is encountered:

You may need to close the Internet Explorer browser for this to take effect and log in again.

Configuring Firefox to avoid MacID login pop-up window issues
  • Go to ToolsOptions;
    In some installations of Firefox it might appear under EditPreferences
  • Click on Tabs (a tab at the top);
  • Under New pages should be opened in:, select a new window.

You may need to close the Firefox browser for this to take effect and log in again.

For more information on Mac ID visit http://www.mcmaster.ca/uts/email_accounts/macid.html

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