iPhone 17 Pro Max WiFi slower than iPhone 14 Plus

I'm struggling to figure out why my iPhone 17 Pro Max is experiencing much slower WiFi than my wife's iPhone 14 Plus. I ran speed tests on both devices on our 3Gb fiber network. Although WiFi is never as fast as wired Ethernet, my wife is getting speeds of 300mbps on her iPhone 14 Plus, but my iPhone 17 Pro Max is maxing out at 60-70mbps on the same network. I even restarted the phone with the same results.

I thought it might be some background task slowing down the phone so I removed all active apps and it only went from in the low 40s and 50s to the 60s in speed.

I'm now completely puzzled at what could be causing this. Any thoughts from the networking gurus out there?

Posted on Oct 13, 2026 9:43 PM

2 replies

Adwiz Author

Level 1 (73 points)

Oct 14, 2026 2:59 PM in response to Johnathan Burger

If it was the router, it would show the same speed for my wife's phone and my phone. Yet it consistently shows a different speed even though both of us are using the same network with the same speed test server.

Johnathan Burger

Level 9 (72,811 points)

Oct 13, 2026 10:13 PM in response to Adwiz

It’s your router.

No issues here: