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Home > Success Center > Archive > 2017December18 - Deletes > The Web Console shows 500 error and displays a blank screen

The Web Console shows 500 error and displays a blank screen

Created by Con Finucane, last modified by Kevin.Swinson on Dec 18, 2017

Views: 879 Votes: 0 Revisions: 4


The NPM Web Console showing 500 error and a blank screen.


Error in the logs.


Error: <WARN SolarWinds.Information.Service.Diagnostics.PerformanceCounters - Accessing raw value of counter failed
System.InvalidOperationException: The requested Performance Counter is not a custom counter, it has to be initialized as ReadOnly.
at System.Diagnostics.PerformanceCounter.InitializeImpl()
at System.Diagnostics.PerformanceCounter.get_RawValue()
at SolarWinds.Information.Service.Diagnostics.PerformanceCounters.GetPerformanceCounter(String category, String counterName, String instanceName, PerformanceCounterInstanceLifetime instanceLifetime)>


All NPM versions


The SolarWinds information service is not starting due to problem loading the performance counters. This stops the website from loading.


  1. Stop all Orion Services using Orion Service Manager.
  1. Rebuild Performance Counters
    1. Open the command prompt as administrator.
    2. Navigate to cd\windows\system32.
    3. Type lodctr /R and hit return.
  2. Start all Orion Services using Orion Service Manager.
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