I have been using a PostgreSQL 10.3 database remotely with a Xojo 2018 r3 database quite successfully. The connection is established using SSL.
In one installation, the client is trying to log in using AT&T fiber network and Xojo is connecting initially but then getting errors when trying to access any data.
On the same computer, there is a public WiFi that they can connect to and everything runs fine. It’s just that when they are connected to their modem via ethernet or local WiFi they can’t use the Xojo application.
I have run a speed test and everything seems to be running with plenty of speed. There were some packets dropped when I checked the MTU settings, but that would slow things a bit but not kill the connection.
I am guessing AT&T is blocking something but I really can’t say for sure. I had a similar thing happen with a client using Verizon, but they just switched internet providers and that was the solution for them. I don’t believe this client has that option, so I would really like to figure out what it could be.