[isalist] Re: Error 502 in browsed site

  • From: "Mayo, Bill" <bemayo@xxxxxxxxxxxxxxxx>
  • To: <isalist@xxxxxxxxxxxxx>
  • Date: Thu, 14 Feb 2008 13:28:38 -0500

Jim, I have a network capture, and I have isolated it down to the
packets that are sent after the logon request (and where it fails).  I
do see an HTTP payload on 2 packets that says "httpcontenttype = ".  The
latter of these is the last packet sent by the server.  Does that
clarify anything, or is there something else I should be looking for?
Bill Mayo


From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Jim Harrison
Sent: Thursday, February 14, 2008 1:37 AM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Re: Error 502 in browsed site

Until you know what ISA rejects, there can be no "fix".

What is the site?


From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Mayo, Bill
Sent: Wednesday, February 13, 2008 1:43 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] Error 502 in browsed site


I am running into a problem that appears to be well documented, but I am
not having any success in getting it to work.  I have a user going to a
"critical" (sigh) site that is causing ISA 2006 EE to throw a 502 error
to them, and in logging it shows: The HTTP message includes an
unsupported header or an unsupported combination of headers. (12156) .
I have found KBs regarding this error, the most pertinent seeming to be
935693.  I have downloaded and installed the "ISA Server 2006
Supportability Update package", which indicates that is addresses this
issue.  I also have applied the registry changes that are indicated in
935693.  Unfortunately, the error persists.  I am wondering if a reboot
or services restart is necessary after the registry change, but the
article doesn't indicate one way or other (I will try that after hours).

I understand that, at its core, this a problem with the site they are
visiting.  However, I have no realistic way to get this addressed on
that end, and the client wants it fixed now.  Is there anything that I
am missing, or any pointers anyone can provide?

Bill Mayo 
Network Administrator 
Pitt County MIS 
V:252-902-3831  F:252-830-6361  E:bemayo@xxxxxxxxxxxxxxxx 

Other related posts: