Diagnose before buying
A dead zone may be weak coverage, interference, congestion, an overloaded router or a slow ISP. Test the same rooms and times before spending money.
| Scenario | Likely fit | Caveat |
|---|---|---|
| One small room | Extender | Place where source signal is strong |
| Multiple floors | Mesh | Wireless backhaul shares airtime |
| Ethernet available | Wired access point/mesh | Usually more stable |
| Slow everywhere | ISP/router diagnosis | Coverage hardware may not fix speed |
Placement
Place an extender between the router and the weak area, not inside the dead zone. Walls, floors and interference matter.
Roaming and backhaul
Matching SSIDs does not guarantee seamless roaming. Wired backhaul avoids using wireless airtime between nodes; wireless backhaul depends on bands and placement.
Wi-Fi Generations Evolution: Theoretical Throughput & Physical Layer Benchmarks
| Generation | IEEE Standard | Frequency Spectrum | Channel Widths | Modulation & Streams | Theoretical Max PHY | Real-World Latency |
|---|---|---|---|---|---|---|
| Wi-Fi 1 | 802.11b (1999) | 2.4 GHz | 22 MHz | DSSS / CCK (1 stream) | 11 Mbps | 50–120 ms |
| Wi-Fi 2 | 802.11a (1999) | 5 GHz | 20 MHz | OFDM 64-QAM (1 stream) | 54 Mbps | 30–60 ms |
| Wi-Fi 3 | 802.11g (2003) | 2.4 GHz | 20 MHz | OFDM 64-QAM (1 stream) | 54 Mbps | 25–50 ms |
| Wi-Fi 4 | 802.11n (2009) | 2.4 GHz & 5 GHz | 20 MHz, 40 MHz | 64-QAM MIMO (4x4) | 600 Mbps | 15–35 ms |
| Wi-Fi 5 | 802.11ac (2013) | 5 GHz | 20, 40, 80, 160 MHz | 256-QAM MU-MIMO (8x8) | 6.93 Gbps | 8–20 ms |
| Wi-Fi 6 | 802.11ax (2019) | 2.4 GHz & 5 GHz | 20, 40, 80, 160 MHz | 1024-QAM OFDMA (8x8) | 9.6 Gbps | 3–8 ms |
| Wi-Fi 6E | 802.11ax 6GHz (2020) | 2.4 GHz, 5 GHz, 6 GHz | Up to 7x 160 MHz channels | 1024-QAM OFDMA (8x8) | 9.6 Gbps | 2–5 ms (Clean Spectrum) |
| Wi-Fi 7 | 802.11be (2024) | 2.4 GHz, 5 GHz, 6 GHz | Up to 320 MHz (Block 31/95) | 4096-QAM MLO (16x16) | 46.1 Gbps | < 1 ms (Sub-Millisecond Wire-Grade) |
Compatibility and security
- Check Wi-Fi generation, bands, WPA2/WPA3 and firmware.
- Confirm ecosystem compatibility with the existing router.
- Use a guest network for visitors.
- Do not reset a router merely to fix coverage.
Validate improvement
Measure the same locations before and after for stability, latency and throughput. Label results as your test conditions, not universal performance.
Frequently asked questions
Is mesh always faster?
No. A well-placed extender may be enough; wireless backhaul still has limits.
Where should an extender go?
Between the router and dead zone where the source signal remains stable.
Does the same SSID guarantee roaming?
No. Client and vendor behaviour also matters.
Our networking steps are lab-tested against standard RFC 1918 private networking protocols across Windows 11 (24H2), macOS Sequoia (15.1), iOS 18, and Android 15. We verify physical device labels and firmware release documentation before publishing gateway instructions. Router Portal is strictly read-only and never requests, intercepts, or logs router passwords.