Supported Browsers: 

• Google Chrome 
• Firefox
• IE 9 and above

Try these tips: 

• Disable your antivirus and firewall software.
• Tonido Web Browser user interface requires cookies to be enabled, make sure you have enabled cookies in your browser.   
• When the browser opens, Hit Refresh or Reload
• Try a different browser, FireFox or Chrome for example
• You can try opening the Classic Interface (if you are using an older browser). The URL is https://<yourname>.tonidoID.com/ui/classic/index.html