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Home > Success Center > Network Performance Monitor (NPM) > Orion Universal Device Poller: Unspecified Error

Orion Universal Device Poller: Unspecified Error

Created by Daniel Polaske, last modified by MindTouch on Jun 23, 2016

Views: 108 Votes: 0 Revisions: 9


The following error appears when opening the Universal Device Poller applications and/or when using functions within the application:

Orion Universal Device Poller: Unspecified Error

When checking the UniversalDevicePoller.log file, the following error message is displayed:

ERROR Program - Main Form Unhandled exception.

System.NullReferenceException:  Object reference not set to an instance of an object.

at CustomPollerManager.TreeController.InitMibParentNodes()

at CustomPollerManager.BrowseMIBForm.InitMibParentNodes()

at CustomPollerManager.BrowseMIBForm..ctor(NetworkObjectType netObjType, String oid)

at CustomPollerManager.CustompollerUltraScenes.DefineCustomPollerScene.btnBrowseMib_Click(Object sender, EventArgs e)

at System.Windows.Forms.Control.OnClick(EventArgs e)

at Infragistics.Win.Misc.UltraButtonBase.OnClick(EventArgs e)

at Infragistics.Win.Misc.UltraButton.OnMouseUp(MouseEventArgs e)

at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)

at System.Windows.Forms.Control.WndProc(Message& m)

at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message & m)

at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message & m)

at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPt wparam, IntPtr lparam)


NPM 11.5.3


Apply the SolarWinds Network Performance Monitor 11.5.3 Hotfix 1 on your Main Polling engine server as this hotfix addresses the following issues:
* High CPU utilization when processing multicast data.
* UnDP utility fails because of an unspecified exception. Install the hotfix on all polling engines which are affected by the issues.


Installing the hotfix:
1. Log in as an administrator to the server hosting your SolarWinds NPM installation.
2. Extract the hotfix archive, run SolarWinds-NPM-v11.5.3-HF1.exe, and follow instructions in the installation wizard.
3. Complete the Configuration Wizard. If the wizard does not launch automatically, start it in the SolarWinds Orion program folder (SolarWinds Orion > Configuration and Auto-Discovery > Configuration Wizard). Multicast data processing will be faster and the UnDP utility will be more stable.




Last modified
23:18, 22 Jun 2016