IQN Authorization Failure

[schneidex]

Hello, of 3 IQN for 3 QNAP servers on an iSCSI Target server, 2 are connected, 1 is inactive. When trying to connect = Logon to target to the inactive, "Authorization Failure* is shown. Where is this Authorization needed? Have deleted the iqn and re-established - same error. Best regards and thank you for help.

[FSC830]

Late answer: did you check if you are using CHAP at the host or the NAS?
If not, no authorization is needed.

Regards