Simple answers to common Wi-Fi questions
Type your problem in your own words below. Every answer says what to check, what to leave alone, and when it's time to call someone for help.
12 answers found · last checked 17 August 2026
What is band steering?
It encourages compatible clients toward a preferred band, usually 5/6 GHz, but the client makes the final association decision.
Advanced Wi‑FiWhat is client steering between mesh nodes?
The mesh can encourage roaming to a better access point, but clients choose when to move. Poor node placement can make steering ineffective.
Advanced Wi‑FiWhat is DFS and why did 5 GHz briefly disappear?
DFS channels share spectrum with radar. A router detecting radar must leave the channel, which can briefly interrupt or move compatible clients.
Advanced Wi‑FiCan I manually change channels on eero?
No; eero uses automatic channel selection. Radio Analytics can show busyness, but manual channel selection is not currently offered.
Advanced Wi‑FiWhat do RSSI, SNR and noise floor mean?
RSSI estimates received signal power; SNR compares signal with noise; noise floor reflects background energy. Stronger signal and adequate SNR generally reduce retries, but thresholds are device/use dependent.
Advanced Wi‑FiWhy is channel width important?
Wider channels can raise peak throughput but consume more spectrum and may be less stable in congested areas. 20 MHz is usually safer on busy 2.4 GHz.
Advanced Wi‑FiWhat is airtime or channel busyness?
Wi‑Fi is shared and half-duplex: devices take turns. High activity or interference leaves less airtime and can increase latency and reduce throughput.
Advanced Wi‑FiWhy do I get packet loss with a strong signal?
Strong RSSI does not guarantee a clean channel or healthy path. Interference, driver bugs, congestion, backhaul or WAN issues can still drop packets.
Advanced Wi‑FiWhat is double NAT?
Double NAT occurs when two routers both perform routing/NAT. It can affect gaming, inbound access, VPNs and discovery. Use one routing layer where possible.
Advanced Wi‑FiShould my eero be in bridge mode?
Only when another required router is doing routing. Bridge mode keeps eero Wi‑Fi but disables several advanced network/security features.
Advanced Wi‑FiWhat is WPA3 and can it break old devices?
WPA3 improves security, but some legacy clients struggle with WPA3 or mixed modes. Use current firmware and the least-weakened compatible setting.
Advanced Wi‑FiWhat is Wi‑Fi 6, 6E or 7 and will it make every device faster?
Newer standards improve efficiency and capability, but each client uses only what it supports; distance, channel, backhaul and internet tier still matter.