Trailhead Known Issues

Common Issues

Problem: Don't know your Trailhead login credentials.

Solution: When you are accepted to, or hired by, Mines you will be given information to create your MultiPass account at Use your MultiPass credentials to log into Trailhead. If you have problems with this process, please submit a support request to Mines Service Center at

Problem: Forgot your Trailhead password.
Problem: Can't view your 12-month Vacation/Sick Leave calendar properly on a Mac.

Solution: This calendar is generated as a PDF file, which can sometimes display improperly on a Mac. To get around this, (a) Download and install Adobe Reader (; (b) Instead of clicking on the “Display the 12-Month Calendar” link, save it as a file (pdfCalendar.asp); (c) right-click on the saved file, select “Get Info”, click on the “Open with” selector and select “Adobe Reader”, select “Change All”.  Now when you click on “Display the 12-Month Calendar”, it will always open with Adobe Reader in a new window. Note: More recent versions of OS X tend to work well.

Other Issues

These not-so-common problems typically need individual attention and investigation. For more help with these issues, visit the Computer Commons (CTLM 156a) during regular business hours. Or submit a support request through the Mines Service Center at

Problem: Blank SSB Pages. User can log into Trailhead, but when they click into Self-Service Banner, pages are blank.


  • May be a web browser security, ad blocking, pop-up blocking or firewall problem.
  • For Internet Explorer, add “” and “” to your Trusted Sites. (See our Modify Trusted Sites help page.)
  • For Norton Internet Security or Symantec security products, see our NIS Fix information.
  • If you are using multiple security software programs and are unsure of which of the programs is causing the problem, try temporarily disabling one program at a time and testing to see if access to Trailhead/SSB is allowed.
  • Try a different web browser or computer.