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02.08.2008 at 07:15PM PST, ID: 23149606
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9.6

How to resolve 502 Proxy Error, rejected by HTTP filter  (12217)

Asked by technomic in MS Forefront-ISA, Internet Explorer Web Browser, Microsoft Applications

Tags: , ,

Dear Experts,


When browsing to various websites users receive the following error:
Error Code: 502 Proxy Error. The request was rejected by the HTTP filter. Contact your ISA Server administrator. (12217)
IP Address: XX.XX.XX.XX
Date: 2/8/2008 4:24:01 PM
Server: server.domain.com
Source: web filter

My boss needs to be able to use the search option on abebooks.com, she is able to browse the site, but as soon as she ( and everybody else on the network) hits search, receives the same error. Today I got a number of complaints from users for a number of other websites that they can no longer get to as well as Internet Slowness.

I was looking at this article http://support.microsoft.com/kb/894483   but it wont help for a couple of reasons. I temporarily disabled the rule just to check if I can get through, didnt help&

Previous admin created an HTTP filter and I was going through blocked websites, sites that are indicated in the filter are not the ones I try to access when the error is generated. Temporarily disabling this rule didnt let me get through either.

It also appears that Caching is disabled.

Users also complain about internet connectivity slowness.

How can I resolve this issue?  Is the proper way to restart ISA firewall service done from Services and Application on computer management console ?

I will restart ISA service tomorrow, in case it doesnt resolve the issue, what should be my next step?

Im new to ISA and if possible please post detailed instructions.

Thank you in advance.
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[+][-]02.10.2008 at 08:36AM PST, ID: 20861550

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[+][-]02.10.2008 at 03:08PM PST, ID: 20863093

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[+][-]02.11.2008 at 01:38PM PST, ID: 20870502

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[+][-]02.11.2008 at 02:33PM PST, ID: 20870998

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[+][-]02.11.2008 at 03:07PM PST, ID: 20871204

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About this solution

Zones: MS Forefront-ISA, Internet Explorer Web Browser, Microsoft Applications
Tags: Microsoft, ISA 2004, 4.0.2163.213
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Solution Provided By: keith_alabaster
Participating Experts: 1
Solution Grade: A
 
 
[+][-]02.13.2008 at 04:15PM PST, ID: 20889791

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