[USG FLEX H AP controller] Why AD authentication failed for the SSID connection?
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Zyxel_Melen
Posts: 4,364 
Zyxel Employee
Zyxel Employee
This issue could be because:
- Your firewall haven't join your AD server. Please click the join domain button in AD server summary.
- Your firewall might disconnect with your AD server. Please check the connection.
- Wrong account/password. Please check the account and password is correct.
Zyxel Melen
0
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