Re: ISA 2004 Sp3 Issues

Thanks but I already enabled the compression filter. The compression filter
helped with some sites, but I still get this error on other sites.

"Terence Liu [MSFT]" <v-terliu@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:hWrNhAp0IHA.3644@xxxxxxxxxxxxxxxxxxxxxxxxx
Hello Joel,

Thank you for posting here.

According to your description, I understand that you get "502 Proxy Error.
The request is not supported. (50)" when you access some web site after
you
install ISA server 2004 sp3. If I have misunderstood the problem, please
don't hesitate to let me know.

Based on my research, I suggest we try the following steps to see if we
can
resolve this issue:

Some web servers will return compressed content (gzip) even though IE
client did not request it.

There was a check introduced in SP3 which blocks (incorrectly) compressed
responses from web servers when compression was not requested and the
compression filters are disabled as ISA is not able to decompress the
response so this could bypass things like HTTP filter checks.

Please enable Compression Filter on ISA server 2004 to resolve this issue:

1. Please open ISA server 2004 management console

2. Expand to Configuration -> Add-Ins -> Web Filters Tab

3. Right click Compression Filter, select Enable.

4. Click Apply to save the configuration.

More information regarding HTTP compression:

Configuring HTTP compression
http://www.microsoft.com/technet/isa/2004/help/SRSP2_HTTPOver.mspx?mfr=true

I hope these steps will give you some help.

Thanks and have a nice day!

Best regards,

Terence Liu (MSFT)

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--------------------
From: "Joel Z" <nowhere@xxxxxxxxxxx>
Subject: ISA 2004 Sp3 Issues
Date: Thu, 19 Jun 2008 13:45:02 -0500
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After upgrading to sp3 I am having issues with the following error when
trying to access some websites

"502 Proxy Error. The request is not supported. (50)"
Any ideas?










.

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