WCF Exists and partially working but for some calls returns “no endpoint listening - (404) Not Found.”

Question

We have service that\'s working with small to large sets of data (document generation), and it\'s working fine for some calls, but for some specific requests (exact same method,

Answer 1

I found what was wrong using instructions on Troubleshooting Failed Requests Using Tracing in IIS 7 (very cool stuff btw)

There, I saw that the error was in fact the 404.13, which easily led me to what's really wrong: Content length too large.

In the end, the solution was to add this to web config:

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and, also, make sure that the default web site doesn't override it using:

"%WINDIR%\System32\inetsrv\appcmd.exe" list config "Default web site" -section:requestFiltering