I also testing agent upgrade, and I receive the same error.
Here are the log files:
2016-04-29 09:20:50,269 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:934) - command: "C:/Program Files/CA/CCA Server\Agent_Installers\Windows\installCmd.exe" \\vvcewhgedap01 /win64 /user:usr_agent \"C:\Program Files (x86)\CA\Cohesion\Agent\UninstallerData\Uninstall Cohesion Agent Windows.exe\" -i silent
2016-04-29 09:20:50,271 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:935) - result=-2
2016-04-29 09:20:50,272 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:937) - Remote Agent Uninstall Error:
Logon failure: unknown user name or bad password.
2016-04-29 09:20:55,313 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:1020) - cmd_result=Logon failure: unknown user name or bad password.
2016-04-29 09:20:55,345 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:1148) - Remote Agent Install Result:
Logon failure: unknown user name or bad password.
2016-04-29 09:20:55,347 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:2026) - Remote Agent Install/Uninstall Error: CCA-RI-1427: Remote Agent Install Failed on Server "vvcewhgedap01". Logon failure: unknown user name or bad password.
2016-04-29 09:20:55,379 ERROR [RAInstallThread] com.ca.acm.rainstaller.RAInstaller (RAInstaller.java:1227) - result: Logon failure: unknown user name or bad password.
Is there a way to increase log to debug mode to try to understand what is happening?