If you are trying to access your Hub or add-in, but you are having issues accessing the information, the page it's timing out, or are getting an error message. Compare your symptoms with the following information, this information should match the symptoms as you are having or at least be similar.
When trying to log in from the add-in the error message should look this:
From logging in from the Web App, the page should stay loading until it times out.
There different variables as to why this is happenings.
Troubleshooting steps (identify cause)
The following information will help determine your ISP and more clues for why it's happening.
1. Utilize the "nslookup -debug" command on the PC of the users experiencing the issue.
-Simply open the Windows Search Bar and type "CMD". Then type "nslookup -debug [HubName].bimtrackapp.co" and copy + paste the results in a text file and send it to us.
2. Use the Fiddler tool, as I explained before, this will allow us to trace or inspect the traffic from the affected computer to our servers. https://www.telerik.com/download/fiddler/fiddler4