Why Your Internet Lags During Downloads and Video Calls — Bufferbloat Explained and Fixed

Home network technician troubleshooting bufferbloat symptoms: laptop showing video call lag while downloading at high speed, router with visible dust accumulation, latency monitoring app visible on smartphone.

You have a 200 Mbps connection. Your speed test confirms it. Yet the moment someone in your house starts downloading a game update or uploading a large file, your video call freezes, your game starts rubber-banding, and every webpage takes forever to load. The connection is not slow — the speed numbers prove it. But … Read more