Windows 11 gives warning message when connecting to WPA2 Enterprise network

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TobitschMaximilian-4243 asked Oct 28, '21 TobitschMaximilian-4243 answered Oct 29, '21

Windows 11 gives warning message when connecting to WPA2 Enterprise network

Since we started installing Windows 11 on several laptops in our department we started to notice this message:
![144615-image.png

First we thought our NPS Server and Certificate are too old (Server was 2012 R2, certificate was SHA1) but after upgrading both (Server is now 2019 and Certificate is SHA256) we are still getting this message.

As some of our devices are still using Windows 10 we tested with those and they are connecting flawlessly.
Anybody have a idea what we may be doing wrong or is this now the "normal" behaviour with Windows 11?

windows-11

image.png (34.0 KiB)

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Answer 1 · 2021-10-28T18:55:43.17Z

LimitlessTechnology-2700 answered Oct 28, '21

Hello @TobitschMaximilian-4243,

I would recommend you to check the next Techcommunity thread where this issue was explored and different solutions were provided: https://techcommunity.microsoft.com/t5/windows-server-for-it-pro/windows-11-clients-cannot-authenticate-to-nps-server-using/m-p/2827382

Hope this helps with your query,

--If the reply is helpful, please Upvote and Accept as answer--

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Answer 2 · 2021-10-29T06:32:01.057Z

TobitschMaximilian-4243 answered Oct 29, '21

Hello @LimitlessTechnology-2700,

thanks for pointing in the right direction.
In fact our GPO that was giving our clients the WIFI profile was not correctly configured, we set the checkmark that the client should validate the certificate but not which Server and also we didn't check the box which Certificate is our Root, after setting those two options it is now finally working again.

Thank you very much for your help, it is much appreciated.

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