C＃Web服务在控制台中工作，但不在IIS服务器上的asp.net网站上工作

Question

I'm using a web service which works fine when I run it on my machine in an ASP.NET application using the default IIS Express VS 2010 comes with. However, when I move it to our server with IIS I get the error:

Error: There was no endpoint listening at 'web service name here' that could accept the message. This is often caused by an incorrect address or SOAP action.

'web service name here' is just a placeholder I put for this post. It has the right web service name.

So I pulled out the small login code that this is failing on into a console application and ran that from the IIS server and it worked! So I have to assume this is some kind of permissions issue with the IIS server on how it's running my web service code? In my ASP.NET program I have a separate DLL that handles the web service. The ASP.NET application fires off a separate thread that uses the DLL I made that uses the web service. Is it something to do with the separate thread permissions maybe? Any ideas?

Answer 1

Your first step when faced with this sort of issue is to search your config files for "web service name here" (or if this isn't actually the message you're getting the address given in the message). My suspicion is somewhere you'll have a WCF reference set up which needs a proper IP address.

Once you've got the address (assuming it looks valid) you need to check you can access it from the machine which is having the difficulties - it may be a firewall issue.

Now that you've established that your console application is connecting correctly from the same machine the next step is to check that both your IIS App Pool and Console application are running under the same user account/permissions. It may be that one identity has permission to access the network/internet and the other one doesn't.