Why does my Wi-Fi crawl every evening, and what’s the one fix that actually works?

Evening slowdowns usually come from one of two bottlenecks: your internet provider’s shared connection is busy, or nearby home networks are crowding the same…

Evening slowdowns usually come from one of two bottlenecks: your internet provider’s shared connection is busy, or nearby home networks are crowding the same radio channel. Test once beside the router and once over Ethernet during a slow period; if Ethernet stays fast, rebooting the router so automatic channel selection can rescan—or manually choosing a quieter channel—targets the Wi-Fi problem. If Ethernet also slows, save the timed speed tests and take them to your provider.

Why evenings are your network's rush hour

Your evening slowdown has two rush hours stacked: your household's (everyone home, streaming, gaming, updating) and your neighborhood's, because cable internet shares capacity between streets. Add game consoles and PCs that schedule their giant updates for the evening, and 8 p.m.

What to do, step by step

1. Test at the crime scene: run your speed test at 8-9 p.m., wired to the router if possible, to separate Wi-Fi trouble from internet trouble.
2. Schedule the hogs. Set consoles, PCs, and cloud backups to update overnight instead of prime time.
3. Give video calls and work traffic priority with your router's QoS (quality of service) setting, if it has one.