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Home > Success Center > Network Performance Monitor (NPM) > The Web Console is blank when opened

The Web Console is blank when opened

Created by Michael Osborn, last modified by MindTouch on Jun 23, 2016

Views: 1,435 Votes: 1 Revisions: 6

Overview

This article describes an issue where the Web Console is blank when opened. In the log files, you may see the following in the Core.BusinessLayer.log:

 

Assembly SolarWinds.Orion.Core.CertificateUpdate, Version=2015.1.35100.9209, Culture=neutral, PublicKeyToken=null, .NET version v4.0.30319 ***

2016-02-12 08:04:58,991 ERROR SolarWinds.Orion.Common.SWEventLogging - Unhandled Exception caught in Core Service Engine startup. The file exists.

2016-02-12 08:04:58,991 FATAL SolarWinds.Orion.Core.BusinessLayer.CoreBusinessLayerPlugin - Unhandled Exception caught in plugin startup.
System.IO.IOException: The file exists.

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIOError()
at System.IO.Path.InternalGetTempFileName(Boolean checkHost)
at SolarWinds.Orion.Core.CertificateUpdate.Md5CertificateUpdater..ctor(Boolean onlySynchronizeCertificateWithDatabase, TimeSpan agentStatusPollFrequency)
at SolarWinds.Orion.Core.BusinessLayer.CoreBusinessLayerService..ctor(CoreBusinessLayerPlugin pluginParent, IFeatureManager featureManager, IPackageManager packageManager, INodeBLDAL nodeBlDal, IAgentInfoDAL agentInfoDal, ISettingsDAL settingsDal)
at SolarWinds.Orion.Core.BusinessLayer.CoreBusinessLayerService..ctor(CoreBusinessLayerPlugin pluginParent, IFeatureManager featureManager)
at SolarWinds.Orion.Core.BusinessLayer.CoreBusinessLayerPlugin.Start()

Environment

NPM 11.5 and later

Resolution

  1. Check C:\Windows\Temp if it has more than 65,000 files. Clear out this folder if that is the case.
  2. Restart the Orion Services using the Orion Service Manager. This should restore the Web Console. 
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