Upgraded agents from 9.0SP3 to 9.5AllPatches and a good portion of the agents failed to update during the push deployment. The error received in the scheduled tasks window is "Agent setup program returned an error". I remember seeing this occasionaly the last time we did a deployment but rerunning the task on the computers that had failed generally came back successful. Not the case with 9.5.
Every machine that fails has the same symptoms, which leads me to beleive they are failing for the same reason. If you check the services on a computer that had a failed installation, the ONLY landesk services that are present are "LANDesk Targeted Multicast" and "LANDesk(R) Management Agent". A way to repair the agent on the computer, is that I can run Uninstallwinclient.exe then install the agent manually with a self contained exe and the installer goes through just fine. The problem is I cannot afford to do this on every single computer that has failed. I am still working on a way to identify all of the agents that did not install correctly. At the moment I am considering a loginscript vbs file that checks for the existance of the core landesk services.
I have attached the wscfg32.xlg file with the hops that someone can point out why the agent install is failing on so many machines. If any other information is needed please let me know.