this post was submitted on 13 Oct 2025
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The present reliability issues come from the ubiquity of WiFi networks, especially residential. If you live in an apartment building you're surrounded by them, and they're all trying to use the same limited radio bands. It wasn't such an issue when the first WiFi standards were designed.
802.11bn is trying to implement some better interference-dodging and de-conflicting, but it requires changes at the hardware level. Without reading the full spec, my guess is that the WiFi device has to do more active listening to other networks in the area and adjust its own transmissions to work around them - maybe even talk to other devices at the protocol level and do some traffic policing (e.g. you go then I go then you go then I go...) to reduce interference.