"Not Supported" error - 905 client installation fails to open main m

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Hello, we are moving from Vantage 6.1 to Epicor 9.0.5.601

I install 905 client in two computers. The first one opens main menu fine. The second fails and comes up with an application error "Not Supported" like this:


Error Detail
============
Not supported

Stack Trace
===========
   at System.Management.ManagementException.ThrowWithExtendedInfo(ManagementStatus errorCode)

   at System.Management.ManagementEventWatcher.Start()
   at Epicor.Mfg.Lib.NetworkMonitor.watchEvent(String eventName)
   at Epicor.Mfg.Lib.NetworkMonitor.Start()
   at Epicor.Mfg.UI.Suspend…ctor(Form mainForm, Session session)

   at Epicor.Mfg.UI.MenuForm.loadUserSettings(String userID)
   at Epicor.Mfg.UI.MenuForm.SetupComponent()
   at Epicor.Mfg.UI.App.Launch.ShowMenuForm()
   at Epicor.Mfg.UI.App.Launch.ShowDialog(String[] args)


Brief client installation instructions I used in both computers:

1. Run dotnetfx35.exe — .NET Framework 3.5 sp1
2. Run CRRuntime_12_3_mlb.exe — Crystal Reports 2008 Runtime

3. Run Epicor9Client.msi and change destination folder to C:\Epicor905
4. Copy \\servername\epicor905\client\config to C:\Epicor905\config
Am I missing something? - pls help.