WiFi 7 is the kind of spec sheet that makes you want to believe. 320 MHz channels, 4096-QAM, Multi-Link Operation stitching bands together — the headline numbers promise a generational leap. I wanted to know how much of that survives contact with a real network and real walls, so I built one and measured everything.
The build
The goal wasn't a hero benchmark in an empty RF chamber — it was a network I'd actually trust to run things. So the topology came first: VLAN segmentation separating trusted devices, IoT and lab gear, with firewall rules between them. Security-first, then speed.
From there I enabled the parts of 802.11be that matter most in practice:
- Multi-Link Operation (MLO): letting a client use the 5 GHz and 6 GHz bands at once.
- 320 MHz channels in the 6 GHz band — double the widest WiFi 6E channel.
- 4096-QAM for denser modulation when the signal-to-noise ratio is good.
What I measured
- Peak throughput close to the AP was dramatically higher — the wide channels do exactly what they say when conditions are clean.
- Latency under load was the real win. MLO's ability to dodge a congested band kept things responsive.
- Range-limited spots narrowed the gap fast — wide channels need clean spectrum and good SNR.
So — was it worth it?
For raw "my speed test is bigger" bragging rights? Only near the AP. For a network that stays responsive when everything is happening at once? Genuinely yes — MLO is the feature I'd actually miss. But the biggest gain was the process: designing the topology, reasoning about RF, and documenting every step so the results are repeatable.