Can't access NT 10.15 app

[jking]

Bruce,

I have a report from a user in California, that they cannot access a NT 10.15 app.  They always get "unavailable".  This is an app compiled as a DLL and hosted with another dll app in the Host.exe program.  I also use a Let's Encrypt (LE) SSL certificate.  I have suggested this is a connection issue on their end and asked they check their browser settings, firewall, blocks from ISP, etc.  Apparently their ISP used a web site called "downforeveryoneorjustme".  This site reports my app is down.  It is not down as I can ping it and run from multiple networks here.  Have you seen this before?  Any thoughts?  The URL is:  https://dcisionrt.usfbreastresearch.org

Thanks,

Jeff King

[Johan de Klerk]

Hi Jeff,

Getting this from South Africa:
The connection has timed out

The server at dcisionrt.usfbreastresearch.org is taking too long to respond.

    The site could be temporarily unavailable or too busy. Try again in a few moments.
    If you are unable to load any pages, check your computer?s network connection.
    If your computer or network is protected by a firewall or proxy, make sure that Firefox Developer Edition is permitted to access the Web.

Regards

Johan de Klerk

[terryd]

Also from South SAfrica I get the same result as Johan.
My net speed is good:  ping 2ms download 20.03 upload 15.30 so I don't think that's the problem

[jking]

Thanks guys...turns out to have been an overly protective firewall.

Jeff