Internet Disconnects While Gaming

I have also contacted support many times over the last couple weeks.  Each time they offer another service for me to pay more money to fix.  I spend $150 a month on just internet with them, so I think I should have a stable connection.  I do not believe it is your modem, as we all seem to be having similar issues and if the modems were faulty they would have seen that in some of their tests.  Especially when the tech came and checked everything out.  I'm hopeful that there is someone that reviews this that will be able to correct or give some advice.  Beyond that, I'm looking into alternatives, but unfortunately, our selections are limited.  When alternatives are made widely available, I'll be switching.  I have one night a week that I get to play online games and for months, I have not been able to finish a single game without an issue.