WCF Issue different results accessing from client vs local

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C#

ASP.NET

WCF

webservice

I am using ajax enabled wcf and deployed it on iis8. when i access the service from localhost the required result displayed

{"GetInsuranceResult":[{"ItemID":6,"ItemName":"Adam Insur ( Nov 19
2012  6:11PM )"},{"ItemID":7,"ItemName":"State Life ( Nov 19 2012  6:12PM )"},{"ItemID":8,"ItemName":"Jublie Ins ( Nov 19 2012  2:36PM
)"},{"ItemID":10,"ItemName":"State Life ( Mar  5 2013  3:26PM
)"},{"ItemID":13,"ItemName":"medicare ( Mar 25 2013  3:43PM
)"},{"ItemID":14,"ItemName":"medicate ( Mar 25 2013  3:44PM )"}]}

but when i access the service from client(through ip address) the result is different.

 {"GetInsuranceResult":[{"ItemID":7,"ItemName":"State Life2-edit ( Nov
 19 2012  6:12PM )"},{"ItemID":8,"ItemName":"Jublie Insurance Com ( Nov
 19 2012  2:36PM )"},{"ItemID":10,"ItemName":"State Life -3 ( Mar  5
 2013  3:26PM )"},{"ItemID":14,"ItemName":"medicate ( Mar 25 2013 
3:44PM )"},{"ItemID":15,"ItemName":"test ( Mar 27 2013  3:24AM
)"},{"ItemID":16,"ItemName":"new test ( Mar 27 2013  6:31AM )"}]}

And WCF web.config

<system.serviceModel>
    <bindings>
      <webHttpBinding>

        <binding crossDomainScriptAccessEnabled="true" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferPoolSize="524288"
                 transferMode="Buffered">
          <readerQuotas maxDepth="32" maxStringContentLength="2147483647"
                      maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647"  />


        </binding>

      </webHttpBinding>
    </bindings>
    <standardEndpoints>
      <webScriptEndpoint>
        <standardEndpoint name="" crossDomainScriptAccessEnabled="true" />
      </webScriptEndpoint>
    </standardEndpoints>
    <services>
      <service name="PHRWCFService.Service1"  behaviorConfiguration="ServBehave">
        <!--Endpoint for SOAP-->
        <endpoint
           address="soapService"
            binding="webHttpBinding"
           behaviorConfiguration="restPoxBehavior"
            contract="PHRWCFService.IService1"/>
        <!--Endpoint for REST-->
        <endpoint
          address="XMLService"
           binding="webHttpBinding"
           behaviorConfiguration="restPoxBehavior"
           contract="PHRWCFService.IService1"/>
      </service>
    </services>
    <behaviors>

      <serviceBehaviors>
        <behavior name="ServBehave">
          <dataContractSerializer maxItemsInObjectGraph="2147483647"/>
          <serviceMetadata httpGetEnabled="true"/>
          <serviceDebug includeExceptionDetailInFaults="false"/>

        </behavior>
      </serviceBehaviors>
      <endpointBehaviors>
        <!--Behavior for the REST endpoint for Help enability-->
        <behavior name="restPoxBehavior">
          <webHttp helpEnabled="true"/>
          <dataContractSerializer maxItemsInObjectGraph="2147483647" />
        </behavior>
      </endpointBehaviors>
    </behaviors>
    <serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true"/>

  </system.serviceModel>
  <system.webServer>
    <security>
      <requestFiltering>
        <requestLimits maxAllowedContentLength="2147483647" maxUrl="4294967295" maxQueryString="4294967295" />
      </requestFiltering>
    </security>
    <directoryBrowse enabled="true" />
    <modules runAllManagedModulesForAllRequests="true" />
    <httpProtocol>
      <customHeaders>
        <add name="Access-Control-Allow-Origin" value="*" />
        <add name="Access-Control-Allow-Headers" value="Content-Type" />
      </customHeaders>
    </httpProtocol>
  </system.webServer>

Can any one tell me why this problem occurred.

Thanks.