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• Diagnosing asymmetric gigabit link faults with bidirectional iperf3 — Before blaming Wi-Fi or a chipset for a throughput problem, run iperf3 in both directions between two wired hosts to rule out a one-directional cable/switch-port fault.
• v and usteer — How 802.11k Neighbor Reports, 802.11r Fast BSS Transition, and 802.11v BSS Transition Management combine with a steering daemon like usteer to fix sticky Wi-Fi clients across a multi-AP network.
• OpenWrt throughput pitfalls: ath10k key install failures and TCP collapse over Wi-Fi — Two separate OpenWrt/Wi-Fi throughput failure patterns: a long-standing ath10k/hostapd 802.11r key-installation bug, CPU-bound bridging on weak single-core APs, and TCP throughput collapse for fast senders crossing a Wi-Fi hop.