WiFi WPA3 Cypher Problem

Question

Created 2d

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I've submitted a couple of pieces of feedback regarding broken WPA3 support on iOS 26 for the iPhone 17 Pro Max, and I've seen various access point vendors report that the GCMP256 cypher is not working. If you use WPA2, there is no issue. The problem I'm running into comes down to WPA3 being mandatory on 6 GHz. Some vendors have reported that disabling GCMP256 on Cisco Meraki hardware solves the problem. No other major vendor exposes this level of options.

Does anyone know if it's possible to get more verbose diagnostic information out of the WiFi stack? I need actual information about why the negotiation fails, the technician-level stuff.

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Answer 1

DTS Engineer OP

Apple

2d

So, DevForums is primarily focused on APIs, and thus we’re not really set up to help folks with Wi-Fi debugging issues. You might have more luck over in the Apple Support Community, run by Apple Support, and specifically in the Business and Education topic area. However, I have a couple of tips to share:

Filing a Wi-Fi Bug Report is my advice on how to file an actionable Wi-Fi bug. Specifically, it talks about how to enable additional Wi-Fi logging.
Your Friend the System Log offer general advice on how to use the system log effectively.

I've submitted a couple of pieces of feedback

What were those bug numbers?

Share and Enjoy
—
Quinn “The Eskimo!” @ Developer Technical Support @ Apple
let myEmail = "eskimo" + "1" + "@" + "apple.com"

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Answer 2

Whitebengal OP

1d

FB21899766 (Feb 7 2026) and FB22346435 (Mar 26 2026) I've tried both WPA3-Personal and recently WPA3-Enterprise with no real success.

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