My LANDesk agent installation task is failing to run. This could happen for a lot of different reasons but one in particular is that the host name is not being discovered correctly during the UDD task. If the UDD discovery does not get the hostname right, agent install will fail because IPCheck.exe checks the target hostname to the actual hostname of the system. I have sometimes noticed that if the firewall is enabled, it doesn't get the hostname. Instead it reports the hostname as the second half of the MAC address of the device causing the client install to fail.
Verify the Device Name is correct in the core:
If it is incorrect then run UDD again to see if it gets it right. If it is still incorrect you could check the firewall on the client to make sure it is allowing the UDD task to return the name correctly.