Nza

I've been playing ets2mp for about a month with a ping usually around 50-70ms, but yesterday all the sudden it jumped very high (300-800ms) and it went back to 50-70 and back up again and so forth. This whole time all other players lagged so much there was no point in playing. It doesn't seem to have anything to do with the internet speed since I took a speedtest and it was the same as my other pc. I made sure nothing else was running in the background on my pc but the only thing that seemed to work was to turn the router off and on again, and the lag disappeared. But an hour ago the lag started again. I closed the game and opened it again and could drive for 15 minutes or so before the lag started again. I have no idea why this is or how to fix it.