If you are experiencing issues with AD authentication

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Zyxel_Kevin
Zyxel_Kevin Posts: 981 image  Zyxel Employee
Zyxel Certified Network Administrator - Security Zyxel Certified Sales Associate 100 Answers 500 Comments
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Issue:

If you have authentication issue with AD after enabled MSChapv2.

Checking:

1)Please capture packets when client tried to authenticate. You will find AD reject Samba request.

1.png

Root cause:

1)Due to Legacy USG only supporting SMBV1, if your AD server has disabled SMBv1 for security concern, it will result in a failure.

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