This is my issue. From 2 month now i'm experiencing "ping spikes" which causes too much rubber banding in games like cs:go which makes its unplayable. I am using a WiFi connection and this never use to happen before in past 2 years. I dont know whats the problem. I tried Registry tweaks, IPv6, reinstalling, ditching AVG, reducing startup stuff, restoring the router to factory settings, updating the wifi driver, everything else. Sadly, nothing worked out for me. My internet speed is 100mbps download and around 4-6 mbps upload and currently using super hub 3.
Sometimes (once a week) in around afternoon it works fine. But sometimes.