In your console, open the Agent Configuration and check the agent you have set as default, as well as the "Default Windows Configuration" in the "All configurations".
On the second page (Standard LANDesk Agent), check the core server name in the text box there. Does it point to the right server? That might be where it comes from.
Also, I have seen this when there are odd things with IIS where it won't let you download certain file types etc.