WCF service strange behavior

Question

I have external WCF service, and do not have any access to it. That service is exposing some metadata.

When I generated client and invoked some function several times the method worked perfectly but after that service started throwing 405 Method Not Allowed error.

The client is using custom binding that is look like:

    <customBinding>
        <binding name="IExchangetService" closeTimeout="00:01:00" openTimeout="00:01:00" sendTimeout="00:01:00" receiveTimeout="00:01:00" >
            <textMessageEncoding />
            <security authenticationMode="UserNameOverTransport" allowInsecureTransport="false" />
            <httpsTransport maxReceivedMessageSize="26214400" maxBufferSize="26214400" transferMode="Buffered" />
        </binding>
    </customBinding>

I am surprised by this behavior why for example from 30 calls service successfully executes function 3 times and then simply returns 405 an error? What can this be related to the fall of the service itself? Could I ping it somehow?

Answer 1

The information you give doesn't show the problem, maybe it's a cross-domain problem. You can refer to the link below：

WCF error : 405 Method Not Allowed

Thanks.