able to ping Active Directory domain but unable to connect to AD

Question

User-381038104 posted

Hi,
AD: LDAP://XXXXXXXXX-XXXX:389/dc=org/dc=companyname

our company has one application hosted on third party webserver.

when i ping from that server i am getting response:

C:\Users\Administrator>ping XXXXXXXXX-XXXX.companyname.org

but when i am trying to connect from that server (program) to company's AD i am getting error:

Message: The server is not operational.

Source: System.DirectoryServices
Method: Void Bind(Boolean)
Stack Trace:

at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail)
at System.DirectoryServices.DirectoryEntry.Bind()
at System.DirectoryServices.DirectoryEntry.get_AdsObject()
at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)
at System.DirectoryServices.DirectorySearcher.FindOne()
at testing.Page_Load(Object sender, EventArgs e) in d:\wwwroot\concur\testing.aspx.cs:line 62

When I click Start, point to Find, and then click People, I receive the following error:

The specified directory service could not be reached. The service may be temporarily unavailable or the server name may be incorrect.