I wouldn’t be 100% confident in saying its the commands that are causing the issue. If it was a configuration issue that was caused from using the previous commands, I’d expect the issue to be consistent. Instead there have been times where you were able to log in and play based on your previous responses.
If you’re able to try it on a different computer, let’s give that a try. As for the mobile connection, as long as you don’t have anything downloading in the background, the game itself shouldn’t consume that much data. We wouldn’t need to play a match to test, rather we’d just need to be able to see if you can connect.