12209 - ISA Server 2004 Anonymous access problem when viewing streaming media

[jonco...@googlemail.com]

Hi,

I'm currently running ISA Server 2004 Enterprise Edition and am having
trouble viewing streaming videos on news.bbc.co.uk using media player.
The problem seems to be associated with "anonymous" being denied
access. Get log entries such as:-

0.0.0.0 Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1) Proxy -
newsimg.bbc.co.uk TCP GET 07/11/2007 14:54 0 1 4585 570 0x0 0x0
07/11/2007 14:54 172.17.60.82 192.168.254.90 80 http Denied Connection
- 12209 The ISA Server requires authorization to fulfill the request.
Access to the Web Proxy filter is denied. anonymous Internal -
http://newsimg.bbc.co.uk/nol/shared/img/v3/icons/video_live.gif
ISASERVERNAME Web Proxy Filter

I'm pretty sure this is related to "anonymous" authentication and it's
interaction with the Web Proxy Filter as opposed to an issue with this
particular website - only seems to affect streaming video as nobody
else has reported any issues.

Anyone have any ideas which might be casuing this?

[Jim Harrison (ISA SE)]

There's no such thing as "anonymous authentication"; it's one or the other.
WMP has "issues" authenticating to a proxy if the proxy is specified using
either FQDN or IP address.
This includes those cases where the wpad script is pulled from ISA.
One possible solution is listed here:
http://www.freelists.org/archives/isalist/11-2007/msg00016.html

--
Jim Harrison (ISA SE)

This posting implies no warranty and confers no rights.
http://catb.org/~esr/faqs/smart-questions.html

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