I doubt it mate, these connection issues happen to too many people completely seperated from each other at the same time, work for a while and worsen again. I'm almost certain this has nothing to do with the end user / client side.
Edit:
more people having issues here https://steamcommunity.com/app/231430/discussions/3/2992043384035555461/
https://steamcommunity.com/app/231430/discussions/3/5367692919528258361/
i still wonder how it appears from one day to another without a patch or some kind of change by the developers?!
i think the winter patch arrives next year, did i miss a changelog ?
played with some friends 3vs3 1 week ago with no problems and now i have to play with vpn because of my german Telekom internet connection ?! (which is normally the most expensive and best internet connection in germany)