Protection agent cannot be installed on machine where dpm is installed DPM 2012 SP1 Agent Error

When you install/update your DPM 2012 protection agent from pre SP1 or SP1 to SP1 RU1 through DPM console it’s fairly easy. You just have to click on Update available in Management/Agent tab and the job is done. 

Sometimes (Firewall, incompatible version, etc.) DPM agent cannot be updated from DPM console and you need to proceed manually.
When you try to do manual install/update, it’s a little bit more tricky 🙂 Because there are two DPM “agent” folders in DPM directory structure:
..\DPM\ProtectionAgents\RA\4.1.3313.0\… => Which contains agent SP1 RTM
..\DPM\agents\RA\4.1.3322.0\… => Which contains agent upgrade for SP1 RU1
To manually install/Update DPM agent to DPM 2012 SP1 RU1 you have to: 

  1. Uninstall old agent from control panel
  2. Manually install agent SP1 RTM – 4.1.3313.0
  3. Manually apply upgrade SP1 RU1 – 4.1.3322.0

# Install/upgrade process could be done with a sample Dos script:

Net use U: \\DPMName\c$
Cd /d “U:\Program Files\Microsoft System Center 2012\DPM\DPM\ProtectionAgents\RA\4.1.3313.0\amd64″
DPMAgentInstaller_x64 /q /IAcceptEULA
:: Let enough time for install 
ping -n 240
Cd /d “U:\Program Files\Microsoft System Center 2012\DPM\DPM\agents\RA\4.1.3322.0\amd64\1033″
DPMAgentInstaller_KB2791508_AMD64 /q
:: Let enough time for install
ping -n 240

:: in case of new installation, just remember to attach your new protected server to your DPM Server.
cd /d “C:\Program Files\Microsoft Data Protection Manager\DPM\bin”
setdpmserver.exe -dpmservername DPMName
Net use U: /delete


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