Too Inconsistent ping when gaming - Time Warner Internet

This question is about "Too Inconsistent ping when gaming", with Time Warner Cable internet and apps. As the title states, I have inconsistent ping whenever i'm playing Overwatch. During the day I get around 40-45 ping, not bad, but whenever I play during the nights I get 50-300 ping sometimes 600 ping as well! My game becomes too unplayable. I'm also directly connected to my modem/router via cable but it seems that my devices connected to the wifi gets better speed than I do.

I have a friend who plays with me and he has TWC as well but he gets regular 50 ping whilst mine skyrockets.

Help :c

This topic covered Too Inconsistent ping when gaming, and TWC cable internet service.