IIS Active Directory double handshake hickup
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Published on 2009-03-27T00:23:12Z
Indexed on
2010/05/06
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I have a .net 2.0 click-once application that connects to IIS web services on Windows 2003 R2 64-bits. The IIS is setup with Integrated Windows Authentication.
So whenever a web service call is made to IIS web services, there is a double handshake taking place:
Client Request #1
GetEmployeeList
Server Response #1 <- 401
HTTP/1.1 401 Unauthorized
WWW-Authenticate: Negotiate
WWW-Authenticate: NTLM
Client Request #2
REQUEST Header...
Server Response #2 <- 200
Data Received
Lately, however, Server Response #1 will sometimes (a good 20 percent of the calls) take a massive amount of time (like 25 to 30 seconds).
How do I debug this problem? Is this a Active Directory problem or a Domain Controller problem?
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