Weird issue with bandwidth limitations

SuperSpiralSoul

Commendable
Aug 31, 2016
1
0
1,510
A friend of mine just got his new computer that I built for him, hooked it up, and everything works good.
However, his roommate was having lag issues playing online games, and so he put a limitation on the bandwidth, 50/50 for each of them. When he turned the limitation on, his lag went away, however my friends computer's internet goes to hell. When they turn the limitation off, it is the exact opposite. The roommates computer lags out, and the friends computer is fine. They have great internet speeds. Running a speedtest shows 40mbps download and 20mbps upload. I have never encountered an issue like this before. Any ideas on how to remedy it?