Anyone else having connection issues?

So, a little bit ago I waited like 10 minutes in the loading screen while tabbed out, and I decide to check on it and it says I got disconnected

The game went on for 10 minutes without me knowing. That shit's annoying as hell. Our Vayne apparently had the same problem and also didn't realize it for a while, so he was level 3 when I got into the game while everyone else was around 6 or 7. Luckily, the Gangplank I had to go against was nice when I told him what happened and he let me farm lane for a while. We still ended up losing since Warwick didn't give a shit about our issues and just went ham on us, but that's not the point

Then, I waited about 5 minutes in Team Builder to get into a lobby, and when everyone finally readies up and the captain started matchmaking, it kicks me out and says I couldn't connect. It probably would have been helpful to keep the message up so I could read exactly what it said so I could say it here, but I got pissed at it and just closed League. But it wasn't the usual League error box, it was like a Windows one

I don't think it's my internet, because everything else (YouTube videos, Spotify, etc.) is working just fine, and I was playing earlier, so I'm not sure what the deal is now. I also did a ping test and it's normal for me

Is anyone else having this issue? Or a fix? Or just advice at all? I'm probably not gonna play anymore tonight, but if it starts doing this again tomorrow, I'd love to know why and if it can be fixed