Event ID 2159 Warning

We are getting the following Event ID in the Event Viewer every few hours. The server it is referencing is still in production and is a Global Catalog server. Any assistance would be greatly appreciated.

Log Name:      Application
Source:        MSExchange ADAccess
Date:          3/13/2015 2:19:38 PM
Event ID:      2159
Task Category: Validation
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      Hermes.donald.com
Description:
Process edgetransport.exe () (PID=920). Configuration object CN=2003to2010,CN=Connections,CN=Exchange Routing Group (DWBGZMFD01QNBJR),CN=Routing Groups,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=donald Mercury,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=donald,DC=com read from Titan.donald.com failed validation and will be excluded from the result set.  Set event logging level for Validation category to Expert to get additional events about each failure.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange ADAccess" />
    <EventID Qualifiers="32772">2159</EventID>
    <Level>3</Level>
    <Task>6</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2015-03-13T18:19:38.000Z" />
    <EventRecordID>288714</EventRecordID>
    <Channel>Application</Channel>
    <Computer>Hermes.donald.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>edgetransport.exe ()</Data>
    <Data>920</Data>
    <Data>CN=2003to2010,CN=Connections,CN=Exchange Routing Group (DWBGZMFD01QNBJR),CN=Routing Groups,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=donald Mercury,CN=Microsoft Exchange,CN=Services,CN=Configuration,DC=donald,DC=com</Data>
    <Data>Titan.donald.com</Data>
  </EventData>
</Event>