WiFi 7 Speed Debugging: How iPhone Privacy Settings Reduced Speeds from 1.7 Gbps to 400 Mbps
By
tymscar
Hot, fresh, and worth queueing round the block for.
Summary
The author shares their experience upgrading to WiFi 7 expecting 1.7 Gbps speeds but only getting 400 Mbps. After thorough debugging, they discovered the issue was with their iPhone 17 Pro Max's WiFi settings - specifically, the 'Limit IP Address Tracking' feature was causing significant speed reductions. Disabling this feature immediately restored expected WiFi 7 speeds, highlighting how privacy features can impact network performance.
Key quotes
· 5 pulledAfter setting everything up, I was getting nowhere near the speeds I expected. Time for some debugging.
The disappointing numbers: My wired connection was pulling 950 Mbps through a 1 Gbps switch, and iperf3 directly to the UDR7's 2.5 Gbps port showed around 2.3 Gbps. The backbone was solid.
But on WiFi 7 (6 GHz, 160 MHz width), standing literally a foot from the router, I was only getting around 400 Mbps.
The culprit? 'Limit IP Address Tracking' on my iPhone 17 Pro Max.
Disabling 'Limit IP Address Tracking' immediately restored my WiFi 7 speeds to the expected 1.7 Gbps range.
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