64 - Host not available

[imanetgrl]

I'm trying to access a *.mil website and I am behind ISA server 2k. The page that is displayed to me is:

The page cannot be displayed
There is a problem with the page you are trying to reach and it cannot be displayed.

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Please try the following:

Click the Refresh button, or try again later.

Open the helium.spk.usace.army.mil home page, and then look for links to the information you want.
If you believe you should be able to view this directory or page, please contact the Web site administrator by using the e-mail address or phone number listed on the helium.spk.usace.army.mil home page.
64 - Host not available
Internet Security and Acceleration Server

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Technical Information (for support personnel)

Background:
The gateway has lost the connection with the Web site you are trying to access.

ISA Server: ******
Via:

Time: 6/12/2002 9:43:10 PM GMT

So anyway- I need to get to this site. ISA sp1 is also installed. Is there a config setting that I'm missing? Please help

Thanks!!!!!!!!!!!!
-ImaNetGrl

 

[lovalles]

i have also the same problem with this site

http://openphp.free.fr

if i got behind the firewall it works fine
but on all the clients it has

64 - Host not available
Internet Security and Acceleration Server