Failed Connection Attempt / 11004 Error

Failed Connection Attempt / 11004 Error

Post by YWxhb » Wed, 24 Sep 2008 23:40:01

ISA Server 2004 Standard Edition Service Pack 3
Windows 2004 Standard Edition Service Pack 2

Internet Explorer Clients get Error Code 11004: Host Not Found accessing web

ISA Log shows

Failed Connection Attempt ENTAP174P 23/09/2008 09:37:44
Log type: Web Proxy (Reverse)
Status: 11004 The requested name is valid, but no data of the requested type
was found.
Source: Internal (
Destination: (
Request: GET :1080/images/bgHomeFeatureTransHover.jpg
Filter information: Req ID: 0a96b167
Protocol: http
User: anonymous
Additional information
Client agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; .NET CLR
Object source: Internet Processing time: 1
Cache info: 0x1002 MIME type:

Web Listener on ENTAP174P is called and listens on

ISA Rule is to forward the request to on 1080

No DNS installed, local HOSTS File (to allow ISA to resolve

# For example:
# # source server
# # x client host localhost

It appears that the ISA Server gets the request from the internet on http
(80) and then attempts to forward it to Destination: (
instead of

If I go into the rule and change the TO tab so the server forwards to instead of the dns name ( then the page in
internet explorer loads.

I do have another ISA Server called ENTAP173P currently running ISA Server
2004 Standard Edition and the web site rule works correctly and the TO TAB
forwards onto and not the IP address.