WCF - (504) The server did not return a response for this request.

Question

I have a JSONP WCF service,using back end as MySql.It is working properly when i run it locally with visual studio.

Now we have hosted it in Windows Server 2003.

Now there is very strange problem occurring..

When I do a request with fiddler which does not require much processing internally, it gives me result 200 OK with desired output as response, But when I do a request which requires some internal data processing, it gives me 504 error(gateway time out error).

I also looked at C:\WINDOWS\system32\LogFiles to see if it logs any error but it shows ok result in fiddler request which is as follows:

Fields: date time s-sitename s-ip cs-method cs-uri-stem cs-uri-query s-port cs-username c-ip cs(User-Agent) sc-status sc-substatus sc-win32-status

2010-04-07 10:08:06 W3SVC490896353 s-ip GET /InitialState.svc/GetInitialState reference=1&pageId=18 8080 - c-ip Fiddler 200 0 64

Can anyone please help me to resolve the problem ?? Or any ideas i can try to find out why it is happening ?? Any help will be appreciated...

Answer 1

It looks like a timeout on the client side, or on something between the server and the client.

Things to check:

• Are you using a proxy server? Is there a timeout set on it?
• How are you making the call from the client? What is the timeout setting on the client side?