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orion universal device poller object reference not set to an instance of an object. NPM 12.01

After upgrading to NPM 12.01 i started getting error from Orion UDP application . I had a similar problem with version 11.5.3 but it got fixed by a hotfix :

Orion Universal Device Poller: Unspecified Error - SolarWinds Worldwide, LLC. Help and Support

I already tried the manual database backup , restarting all the service and a full server reboot. The only thing that solves the problem is a full server reboot but this is a solution i can only aply on Sunday mornings.

Any ideea what service or process needs to be restarted in order to fix this without a server reboot?

Only error in UDP log:

2016-12-21 07:39:58,927 [1] 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, IntPtr wparam, IntPtr lparam)

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randy.morgan

Same problem here, have you submitted a case with support?

cahunt

I have had this issue before in the past. randy.morgan@gmail.com, though anytime i have seen that screen my pollers still work.

It has also been some time, I can not remember if that went away with an update; or if a running of the config wizard for the DB helped at all.

I think I may have gotten this error as well trying to fill in OIDs and had to click OK on that error several times, but once it is filled in it does produce.

Keep us posted.

mdecima

Same problem here.

I cannot add new UNDP i get the same error

rschroeder

This seems to be a relatively common error message. One Thwack user found running Solarwinds Configuration Wizard "for website only" resolved their issue.

You can review the instances where that phrase showed up in Thwack questions, and search for resolutions, here:

https://thwack.solarwinds.com/search.jspa?q=not%20set%20to%20an%20instance

Me--I'd open a support case on the phone with SW, and do my searching in Thwack simultaneously. There's no telling what coolness you'll find . . .