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I have configured WiFi authentication on FortiGate 100D through RADIUS on Windows server 2008 R2. When I'm trying to connect to the wifi from a PC (Win 10), it works only when I check "Use my Windows user account" checkbox. If I put domain\user and password manually it doesn't work, I get a message "can't connect to this network". Why it works only when I check "Use my Windows user account" and doesn't work when I write user\password manually? What is the difference between the two, and how can I fix it?

Thanks

Oleg
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  • Does it work when you add your domain to the username? – Joffrey Apr 03 '19 at 14:07
  • I can't answer you in the comments because I don't have 50 reputation. I don't know if it's the right way to answer here but have no choice. I have tried both of these options **domain\username + password** and **username + password** and it doesn't work. But I don't understand what the difference between checking *Use my Windows user account* checkbox or writing it manually. When I check the checkbox it put domain\user and password automatically. [wifi connection](https://i.stack.imgur.com/jZHVu.png) If it will help, I configured Fortigate and NPS according to this guide: https://cookbook.for – Oleg Apr 10 '19 at 08:47

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Already handled the issue.
You can connect only with user\password if you use Unencrypted authentication (PAP, SPAP) method. If you use MS-CHAP2 method it'll only work when checking Use my Windows user account checkbox.

Oleg
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