Unable to reference WSDL of WCF web service hosted

I have developed a WCF service and, while in Visual Studio 2010, I can import the WSDL without a problem. After I've deployed it to AppFabric, I get the WSDL, but several schema files referenced internally in the WSDL cannot be found, for some reason. I don't know if it's a configuration issue, or what. The error I get when I try to process the WSDL in Visual Studio 2010 follows below:

Metadata contains a reference that cannot be resolved:
'http://myserver.mydomain.com:9871/app_deploy/MyAppService.svc?wsdl'.
The WSDL document contains links that could not be resolved.
There was an error downloading 'http://myserver.mydomain.com:9871/app_deploy/MyAppService.svc?xsd=xsd0'.
The request failed with HTTP status 502: Proxy Error ( The specified network name is no longer available. ).
Metadata contains a reference that cannot be resolved:
'http://myserver.mydomain.com:9871/app_deploy/MyAppService.svc'.
There was no endpoint listening at http://myserver.mydomain.com:9871/app_deploy/MyAppService.svc
that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
The remote server returned an error: (404) Not Found.
If the service is defined in the current solution, try building the solution and adding the service reference again.

The error is a proxy error because it goes through a proxy, but the error is because the page isn't there. I've tried accessing http://localhost:9871/app_deploy/MyAppService.svc?xsd=xsd0 at the server, but I get 404.

Why wouldn't these xsd files being found? Is it a deployment issue?

Any help would be greatly appreciated.

Man, I finally found the problem here. I needed write permission on C:\Windows\Temp for Application Pool user!