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.

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?

Answers


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 per this blog post:

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">

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

Three places to set time values to fix this issue…

  1. Web.Config

    <httpRuntime executionTimeout="600" />
    

    (this is seconds, so here it’s 10min). More info on httpRuntime here.

  2. On your Web.Config Binding Elements

    <binding name="customBinding123"     receiveTimeout="00:10:00"     sendTimeout="00:10:00"     openTimeout="00:10:00"     closeTimeout="00:10:00" />
    
  3. On your ServerReferences.ClientConfig binding elements within the system.serviceModel

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

Some days ago we got the same error message. I found this thread, but before we started to increase the different timeout properties, we checked the antivirus software of the client machine: it was NOD. The newer NOD (and maybe other AVs) has port filter/block possibility. We turned off the 80/443 port blocking, and the client connected without any timeout error message.


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