Cannot open control tower site

I try to open control tower to schedule my project but when i try to open control tower page by clicking button showed in the picture, i receive this below error message. What i should do to fix this error?
Thank you

This page cannot be displayed
• Make sure the web address http: // localhost: 15280 is correct
• Search this site on Bing
• Refresh page
Detailed information Detailed information
A temporary DNS error has occurred. Please refresh the page.


Hi @annguyen,

Could you please provide screenshot with browser error? I can also recommend to check:

  • this solution
  • your proxy settings in browser. You may refer to this guide
  • check your firewall settings, if anything is blocking port 15280