Problem increasing WCF service endpoint size configuration - wcf

Question

I have an asp.net project that was hosting a WCF service (via the wcf file exposure technique for IIS) that was put together around 10 years ago. There is an operation on the service that retrieves content that is greater than the default 75K limit. The service configuration (in web.config) property on the binding was adjusted to be larger than the default and was working ok. The ASP.NET project was upgraded in VS2017/2019 - and (I assume) the project was adjusted (somehow). The service operation described above no longer works. I did a lot of investigation and all solutions were handled (which makes sense as the original version of the project was working). I even went through the process of building a new web.config with minimal configuration and still did not work. I also adjusted the service to include the Configure operation that could be used to configure the endpoint configuration in code. It also did not work. For this I have the following:
public static void Configure(ServiceConfiguration config)
{
BasicHttpBinding binding = new BasicHttpBinding();
binding.MaxReceivedMessageSize = int.MaxValue;
binding.MaxBufferSize = int.MaxValue;
binding.MaxBufferPoolSize = int.MaxValue;
binding.BypassProxyOnLocal = true;
binding.ReaderQuotas = new System.Xml.XmlDictionaryReaderQuotas()
{
MaxStringContentLength = int.MaxValue,
MaxDepth = int.MaxValue,
MaxArrayLength = int.MaxValue,
MaxBytesPerRead = int.MaxValue,
MaxNameTableCharCount = int.MaxValue
};
var endpoint = new ServiceEndpoint(
ContractDescription.GetContract(
typeof(IAuthenticateServicePack)),binding,new
EndpointAddress("http://localhost:49437/WCFSevices/AuthenticateServicePack.svc"));
//MyEndpointBehavior Behavior = new MyEndpointBehavior();
//endpoint.Behaviors.Add(Behavior);
config.AddServiceEndpoint(endpoint);
}
The web.config definitions is the following
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true"
multipleSiteBindingsEnabled="true"
/>
<behaviors>
<serviceBehaviors>
<behavior name="ServicePack.ServiceBehavior">
<serviceMetadata httpGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
<serviceThrottling maxConcurrentCalls="500" maxConcurrentSessions="500"
/>
</behavior>
</serviceBehaviors>
</behaviors>
<bindings>
<basicHttpBinding>
<clear />
<binding name="myBindingForBigArrays" maxReceivedMessageSize="2147483647"
transferMode="Buffered">
<readerQuotas
maxDepth="32"
maxStringContentLength="2147483647"
maxArrayLength="2147483647"
maxBytesPerRead="4096"
maxNameTableCharCount="10000"
/>
</binding>
</basicHttpBinding>
</bindings>
<services>
<service name="Lapp.WebAdmin.Mvc.WCFSevices.AuthenticateServicePack"
behaviorConfiguration="ServicePack.ServiceBehavior">
<endpoint address="" binding="basicHttpBinding"
bindingConfiguration="myBindingForBigArrays"
contract="Lapp.WebAdmin.Mvc.WCFSevices.IAuthenticateServicePack" />
<host>
<timeouts closeTimeout="00:01:00" />
</host>
</service>
</services>
</system.serviceModel>
For some reason - the updated asp.net project does not seem to be handling the WCF service endpoint configuration. Has anyone run into this issue?
Note: I can test the older version of the service and is working properly -- and reviewing the old config with the new -- cannot identify any modification that would appear to be causing the new not to use the size limit settings.