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SahinOner
User level: Level 1 (4 points)

iPhone 17 internet speed is slower than iPhone 16

Hi everyone, two weeks ago I switched from an iPhone 16 to an iPhone 17. As you can see in the image, my internet speed is 86.7 Mbps, whereas it used to reach up to 400 Mbps when I was using the iPhone 16. I used 5G on both phones, but the speed didn't change. My network card is an Intel 3168; wondering if there was an issue with the card itself, I tested it with a phone from another brand and got 360 Mbps. What steps should I take with this phone? Could this be happening because of the new Wi-Fi chip in the iPhone 17? Can anyone help?

edit:"Maximize Compatibility" is turned off for Personal Hotspot. I was using iOS 26 on the iPhone 16, and I used iOS 26 on the iPhone 17 as well. I thought it would be fixed after upgrading to iOS 27, but it wasn't.

Posted on Oct 1, 2026 7:01 AM

3 replies

Lawrence Finch
User level: Level 10 (244,490 points)

Oct 1, 2026 7:41 AM in response to SahinOner

Perhaps a long shot:


Do you have a 3rd party VPN installed, even if you are not using it? If so, delete the VPN profile in Settings/General/VPN & Device Management/VPN, then restart your device. Don't just turn it off; delete the profile. Updates sometimes "break" VPN, and it needs to be removed. If that fixes it, you can try reinstalling VPN, but probably shouldn't.

Smilin-Brian
User level: Level 10 (97,882 points)

Oct 1, 2026 8:28 PM in response to SahinOner

Thank you for reaching out. 🤗


Try these steps to improve your iPhone internet speed:

  • Toggle Airplane Mode on and off to reset the network.
  • Check Wi‑Fi or cellular signal strength; move closer to your router or switch to a stronger network.
  • Reset Network Settings under Settings ➢ General ➢ Transfer or Reset iPhone ➢ Reset ➢ Reset Network Settings.
  • Disable any VPN connections and restart your iPhone or tell Siri: "Restart".
  • Learn how to update your iPhone to the latest version of iOS.
  • Learn what to do if your iPhone won’t update.


NOTE: According to Apple: After a software update is installed for iOS, iPadOS, tvOS, watchOS and visionOS, it cannot be downgraded to the previous version.


Need more help?


Good luck! 👋🏼😉

Smiliñ 😎 Brian

SahinOner Author
User level: Level 1 (4 points)

Oct 1, 2026 7:56 AM in response to Lawrence Finch

Hello, thank you for your reply, but I don't have any VPN apps or profiles. I haven't used one on the iPhone 16 at all, either. :(

Originally posted at discussions.apple.com/thread/256368503