Quartz.NET (Clustered) with ADOJobStore going to TRIGGER_STATE ERROR without any error logged

NET 2.3.2 - Clustered Mode with ADOJobStore. It is having 8 jobs with a simple trigger for each. All the jobs are configured with [DisallowConcurrentExecution].

The issue I am facing is - After a couple of hours of run (sometimes 30 minutes) , some of the jobs go into TRIGGER_STATE ERROR (queried QRTZ_TRIGGERS tables) without logging any error information in quartz log file. Pl find the relevant sections of quartz.server.exe.config below.

Also currently to isolate this issue - I am currently ruing Quartz from one server only (recreated schema).

To add more information - All the jobs "Execute" method have a main try-catch to prevent any exception reach Quartz-Core. Let me know if this has to be changed. I have been reading about using "JobExecutionExecution" in Job.Execute catch area. I am not sure about its usage.

    <common>
        <logging>
          <factoryAdapter type="Common.Logging.Log4Net.Log4NetLoggerFactoryAdapter, Common.Logging.Log4Net1213">
            <arg key="configType" value="INLINE"/>
          </factoryAdapter>
        </logging>
    </common>

<log4net>
  <appender name="ConsoleAppender" type="log4net.Appender.ConsoleAppender">
    <layout type="log4net.Layout.PatteLayout">
      <conversionPatte value="%d [%t] %-5p %l - %m%n"/>
    </layout>
  </appender>
  <appender name="EventLogAppender" type="log4net.Appender.EventLogAppender">
    <layout type="log4net.Layout.PatteLayout">
      <conversionPatte value="%d [%t] %-5p %l - %m%n"/>
    </layout>
  </appender>
  <appender name="QuartzIntealLog" type="log4net.Appender.RollingFileAppender">
    <file type="log4net.Util.PatteString" value="Trace/QuartzIntealLogFile_%date{yyyyMMdd}.txt"/>
    <appendToFile value="true"/>
    <maximumFileSize value="1024KB"/>
    <maxSizeRollBackups value="1000" />
    <rollingStyle value="Size"/>
    <datePatte value="yyyyMMdd" />
    <staticLogFileName value="true" />
    <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
    <layout type="log4net.Layout.PatteLayout">
      <conversionPatte value="%d{HH:mm:ss} [%t] %-5p %c - %m%n"/>
    </layout>
  </appender>
  <appender name="LogFileAppender" type="log4net.Appender.RollingFileAppender">
    <file type="log4net.Util.PatteString" value="Log/ABCXYZIntService_%date{yyyyMMdd}.log" />
    <appendToFile value="true" />
    <maxSizeRollBackups value="2" />
    <maximumFileSize value="1MB" />
    <rollingStyle value="Date" />
    <datePatte value="yyyyMMdd" />
    <staticLogFileName value="true" />
    <lockingModel type="log4net.Appender.FileAppender+MinimalLock" />
    <layout type="log4net.Layout.PatteLayout">
      <conversionPatte value="%date [%thread] %-5level %logger [%property{NDC}] – %message%newline" />
    </layout>
  </appender>
  <appender name="SmtpAppender" type="log4net.Appender.SmtpAppender">
    <to value="admin@abc.com" />
    <from value="admin@abc.com" />
    <subject value="Sample Subject" />
    <smtpHost value="smtp.abc.com" />
    <bufferSize value="512" />
    <lossy value="true" />
    <evaluator type="log4net.Core.LevelEvaluator">
      <threshold value="WARN"/>
    </evaluator>
    <layout type="log4net.Layout.PatteLayout">
      <conversionPatte value="%newline%date [%thread] %-5level %logger [%property{NDC}] - %message%newline" />
    </layout>
  </appender>

  <logger name="ErrorLogger">
    <level value="All" />
    <appender-ref ref="LogFileAppender" />
  </logger>
  <logger name="EmailLogger">
    <level value="Error" />
    <appender-ref ref="SmtpAppender" />
  </logger>


  <logger name="Quartz">
    <level value="DEBUG" />
    <appender-ref ref="QuartzIntealLog" />
  </logger>

</log4net>
<!-- 
    We use quartz.config for this server, you can always use configuration section if you want to.
    Configuration section has precedence here.  
  -->
<quartz>
  <add key="quartz.checkConfiguration" value="false"/>
  <add key="quartz.server.serviceName" value="ABC"/>
  <add key="quartz.server.serviceDisplayName" value="ABC"/>
  <add key="quartz.server.serviceDescription" value="ABC"/>
  <add key="quartz.scheduler.instanceName" value="ABCScheduler"/>
  <add key="quartz.scheduler.instanceId" value = "AUTO"/>
  <add key="quartz.threadPool.type" value="Quartz.Simpl.SimpleThreadPool, Quartz"/>
  <add key="quartz.threadPool.threadCount" value="10"/>
  <add key="quartz.threadPool.threadPriority" value="Normal"/>
  <add key="quartz.plugin.xml.type" value="Quartz.Plugin.Xml.XMLSchedulingDataProcessorPlugin, Quartz"/>
  <add key="quartz.plugin.xml.fileNames" value="~/quartz_jobs.xml"/>
  <add key="quartz.scheduler.exporter.type" value="Quartz.Simpl.RemotingSchedulerExporter, Quartz"/>
  <add key="quartz.scheduler.exporter.port" value="555"/>
  <add key="quartz.scheduler.exporter.bindName" value="QuartzScheduler"/>
  <add key="quartz.scheduler.exporter.chaelType" value="tcp"/>
  <add key="quartz.scheduler.exporter.chaelName" value="httpQuartz"/>
  <add key="quartz.jobStore.type" value="Quartz.Impl.AdoJobStore.JobStoreTX, Quartz"/>
  <add key="quartz.jobStore.dataSource" value="default"/>
  <add key="quartz.jobStore.tablePrefix" value="QRTZ_"/>
  <add key="quartz.jobStore.clustered" value="true"/>
  <add key="quartz.jobStore.lockHandler.type" value="Quartz.Impl.AdoJobStore.SimpleSemaphore, Quartz"/>
  <add key="quartz.jobStore.driverDelegateType" value="Quartz.Impl.AdoJobStore.StdAdoDelegate, Quartz"/>
  <add key="quartz.dataSource.default.provider" value="SqlServer-20"/>
  <add key="quartz.jobStore.useProperties" value="true"/>
  <add key="quartz.jobStore.selectWithLockSQL" value="SELECT * FROM {0} LOCKS UPDLOCK WHERE LOCK_NAME = @ lockName"/>
  <add key="quartz.dataSource.default.coectionStringName" value="QuartzStore"/>
  <add key="quartz.dataSource.default.coectionString" value="Data Source=MyServer;Initial Catalog=MyDB;User ID=test;Password=test"/>
</quartz>

<appSettings>
      <add key="log4net.Inteal.Debug" value="true"/>
</appSettings>