Pvp.net disconnections?

Apparently the firewall bug has gotten out of hand lately so they're fixing it right now, but has anyone else had issues with their pvp.net client? Ever since patch 4.20 my client randomly decides to disconnect every 5 minutes or after every game, it's very sporadic. Sometimes I'll be able to see my friend's list, chat in a chat room, but I can't see game invites, or if I idle too long in a game lobby it won't start or show me in the champ select. I've had the firewall issue only a couple times, but it was quickly fixed by restarting my client.

Sometimes when I first log into my client I can't connect to the pvp. (no chats, friends list, invites, etc) sometimes it takes a few tries, and sometimes it'll log on just fine. Other times I can't see the end game lobby, it'll just say "waiting for stats" then say "you have been disconnected from pvp".

I sent a ticket to Riot and they suggested a few things, but nothing worked. I also have numerous friends who have been having the same issue since patch 4.20 or 4.21. I really wish they would own up to their own mistakes, they always assume it has to do with the player's graphics or video settings or client settings, if that's the case why do all these issues only happen with certain patches? If it was the player's fault then they would be having these issues from the very start. For once I wish they would reply with "It is a current known issue with our client and we are working on getting it fixed".