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Alex_Raoul
Alex_Raoul
New Member
December 9, 2025
Question

LdapErr: In order to perform this operation a successful bind must be completed on the connection

  • December 9, 2025
  • 1 reply
  • 715 views

Hello All,

I hope you're doing well.

I have this error ([1186] fnbamd_ldap_parse_response-Error 1(000004DC: LdapErr: DSID-0C090D93, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, v4563))  on ldap debug when i try to access one of my sites through IPSec VPN from FortiClient.

I use an AD account for authentication.

 

For the bind type, It's Regular.

 

please what is the issue ?

 

1 reply

funkylicious
SuperUser
funkylicious
SuperUser
December 9, 2025

have a look at https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-troubleshoot-the-Invalid-LDAP-server-Error/ta-p/252955 

"jack of all trades, master of none"
    Alex_Raoul
    Alex_RaoulAuthor
    New Member
    December 9, 2025

    Thank you for your feedback.
    Let me try and get back to you.

    funkylicious
    SuperUser
    funkylicious
    SuperUser
    December 9, 2025

    if you have a IPsec VPN between sites make sure that you have set the source ip ( not mandatory if i recall correctly ) and there are firewall rules on the remote FGT where the LDAP resides where you have granted access to LDAP from the source ip of the remote FGT.

    "jack of all trades, master of none"
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