Hello Jory10,
Thank you for your question and for reaching out with your question today.
If your colleagues are connecting to the same Radius successfully using Windows 11, there must be a configuration difference between your PC and theirs. Double check the credentials that you're using in the first instance. Then check the security policies on your Fortigate device to ensure that you're in the relevant groups etc. to be able to connect and that EAP-MSCHAP-V2 is correctly configured. Also check that EAP-MSCHAP-V2 for WiFi authentication is configured on your Windows 10 PC and that no other authentication methods are prioritised over it.
It's also worth checking that your network drivers are up to date on the Windows 10 PC and that the Fortigate device and Radius server are running the latest firmware and software versions.
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