Did something happen with videotron?

Since this afternoon, I've been having a lot of trouble connecting to some of multiplayer games I usually play. After taking in as much accounts I found, it appears most if not every people having the same difficulties were using videotron as a provider

Since Fizz uses their intrastructure I guessed it was also the case here.

Did they recently close out some important ports? Or are they having some momentary troubles? Just wondering if somebody with a little more info can help me on this so I can decide where I go from here, especially if the situation doesn't change.