The HTTP request to *.svc has exceeded the allotted timeout. The time allotted to this operation may have been a portion of a longer timeout.

Question

I have been developing a Silverlight application using WCF.

The problem is that sometimes it throws an exception stating:

"The HTTP request to 'http://localhost:1276/Foo.svc' has exceeded the allotted timeout. The time allotted to this operation may have been a portion of a longer timeout."

So how do I increase the timespan? Some have suggested the usage of receive time out as below in web config and in service.client config file

 <bindings>
      <customBinding >
        <binding  name="customBinding0" receiveTimeout="02:00:00" >
          <binaryMessageEncoding maxReadPoolSize="2147483647" maxWritePoolSize="2147483647" maxSessionSize="2147483647" />


          <httpTransport maxBufferPoolSize="2147483647" maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" transferMode="Buffered"/>

        </binding>
      </customBinding>      
    </bindings>

what would be the maximum value for the receiveTimeout property?

Answer 1

I imagine the issue is not that your ReceiveTimeout is beyond the maximum value for that setting, as the MaxValue of a TimeSpan is over 10 million days. Instead, I think the settings are just not taking effect.

You should try increasing the timeout values on both the server and the client-side:

On the server (in your web.config)

<binding name="customBinding0" receiveTimeout="00:10:00" sendTimeout="00:10:00" openTimeout="00:10:00" closeTimeout="00:10:00">

On the client (in your ServiceReferences.ClientConfig)

<binding name="CustomBinding_DesignOnDemandService" receiveTimeout="00:10:00" sendTimeout="00:10:00" openTimeout="00:10:00" closeTimeout="00:10:00">