Unable to create a JCo Destination due to connection error with the SLD

Hello,

I have a Web Dynpro project that is using JCo Destination.

I am trying to create this JCo Destination at the Web Dynpro Content administrator in the portal but it is disabled and so are all the buttons (Create JCo Desination, Maintain JCo Desination and Start assigned SLD). The only button that is active is the Check SLD Connection.

When I check the SLD Connection I receive an error: "Connection to System Landscape Directory (SLD) could not be opended successfully."

Clearly, this is the problem but when I login to the sld it is up and running.

So what else can cause this connection error to the sld?

Roy