Re: One of my instacnes of Orion throws a 403 forbidden error for all calls to the V3 information service when running as the default configuration account of "Local System" but will work as a domain account.

To get a verbose log from WCF, you can add this section to C:\Program Files (x86)\SolarWinds\Orion\Information Service\3.0\SolarWinds.InformationService.Service.exe.config:

  <system.diagnostics>

    <sources>

      <source name="System.ServiceModel" propagateActivity="true" switchValue="Information, ActivityTracing">

        <listeners>

          <add initializeData="c:\Logs\SWISv3.svclog" name="traceListener" type="System.Diagnostics.XmlWriterTraceListener"/>

        </listeners>

      </source>

    </sources>

  </system.diagnostics>

This can be just inside the </configuration> tag at the end of the file. You will need to restart SolarWinds Information Service V3 after making this change. If possible, I recommend having all other services stopped while you troubleshoot this issue. The .svclog file will grow very quickly if the system is active, so debugging will be easiest if you have as few calls as possible happen while this level of tracing is active.