A networking guide explains how bufferbloat—long packet queues under saturated upload or download—can disrupt video calls and remote sessions. On a supported router, enabling Smart Queue Management and starting rate limits around 85% of measured upstream and downstream speed can move control of the bottleneck to the router. The trade-off is some peak throughput for better responsiveness under load. Router processing power and firmware support matter, and SQM will not fix every ISP failure or wireless-interference problem; compare latency before and during load.