[Crash] Unable to connect to server. Please check your network connection

I was forced to reconnect to one of my matches a couple of times due to what I originally thought were internet issues. The first time it happened, I was able to successfully reconnect w/out leaving the match by turning internet off and back on (even though it said the wifi was connected). I tried this again the second time I was forced to reconnect, but it did not work. I tried getting closing out of the game and getting back in, but was given a message saying "Unable to connect to server. Please check your network connection and attempt to reconnect." I tried closing out of LoL completely, restarting my computer, and resetting the wifi - none of them worked. I know my computer was connected to the internet because I was trying to search for any other solutions, but I couldn't find any.