I just installed DS 4.0 on my Windows 7 laptop. I received the Central Management Server connectivity information from my DS administrator, but I'm not able to connect to it when I launch Designer. The error message is very generic: "SDK Failure".
However, I am able to open a Remote Desktop session to the box on which CMS runs and have no problem launching Designer and logging in with the same credentials.
I've tried logging in on my laptop using a port specification as well, but no such luck. I was thinking maybe the port on which CMS is broadcasting is blocked on our network...and our DS admin is looking into that, but I was wondering if anyone had other ideas.