Is it my internet, or...?

Starting since the newest patch i have been having a problem with the champion select screen and accepting matches. Sometimes while waiting for a match to come up, there will never be an option for me to accept and join. However in the times where it does allow me to accept, someone will be banning a champion and the countdown will stay on 0 until i exit the game causing me to get a temporary ban. I have only gotten into about 2 or 3 games without any problems happening. I have also initiated the full repair and have switched to two different internet sources but it seems to have no affect on the situation. Any help would be appreciated. Thanks!