champ select gets stuck when i do something on google chrome

I wanted to play a normal game and while in champ select i searched hecarim counters (the champ i wanted to play) on google chrome and the whole champ select did nothing even after waiting 2 minutes. It was in the ban fase and after a few seconds i saw i was disconected, so i restarted lol and had to wait 5 minutes. I thougt it was a one time thing but the next champ select i had exaclty the same and had to wait 15 minutes. pls fix this riot.