I will shamelessly state that I have little experience with Log4Net... I only just installed it, but it won't capture log events from Quartz.net, which is a scheduling library. Apparently Quartz.net uses Commons Logging and that needs to be configured to point to my Log4Net settings. Unfortunately, it doesn't seem to work. Help is appreciated:

  <configSections>
    ...
    <section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler, log4net" />
    <section name="quartz" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0,Culture=neutral, PublicKeyToken=b77a5c561934e089" />
    <section name="commonLogging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging"/>
  </configSections>
  <!-- Log4net error handling -->
  <log4net>
    <appender name="LogFileAppender" type="log4net.Appender.FileAppender">
      <param name="File" value="Admin/LabSlice.log" />
      <param name="AppendToFile" value="true" />
      <layout type="log4net.Layout.PatternLayout">
        <param name="ConversionPattern" value="%d [%t] %-5p %c  %m%n" />
      </layout>
    </appender>
    <root>
      <level value="INFO" />
      <appender-ref ref="LogFileAppender" />
    </root>
  </log4net>
  <!-- Commons logging (Quart.net logs) -->
  <commonLogging>
    <logging>
      <factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4net">
        <arg key="configType" value="INLINE" />
      </factoryAdapter>
    </logging>
  </commonLogging>