Wi-Fi help

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

Advanced Wi‑Fi

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‑Fi

What 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‑Fi

What 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‑Fi

Can 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‑Fi

What 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‑Fi

Why 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‑Fi

What 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‑Fi

Why 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‑Fi

What 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‑Fi

Should 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‑Fi

What 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‑Fi

What 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.