If you are experiencing issues with AD authentication
Zyxel_Kevin
Posts: 934 
Zyxel Employee
Zyxel Employee
in Other Topics
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.
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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