Hey Mark, That's just the thing, as far as all other normal connectivity issues are concerned, everything pans out 100%. - Name Lookups are fine (63.236.18.30) - tracert dies at 63.146.100.43 (which I presume is their firewall) - Problem occurs on ANY workstation on my network - Cannot contact the website as they don't respond to e-mails :-( - No HTTPS - I don't have an external IP Network, but most everyone on the forum has verified that the site is fine, although I understand that it would be great to be able to test with ISA "out of the picture" to try and identify the problem. But it doesn't make any sense at all as the website (www.earthweb.com <http://www.earthweb.com/> ) is a "run of the mill", standard HTTP website with no extra security or anything. So if I can surf every other website in the world (well, I haven't tried them all but you catch my drift), why can't I surf this one.. Cheers William R. -----Original Message----- From: Mark Hippenstiel [mailto:M.Hippenstiel@xxxxxxxxxxxx] Sent: 07 July 2003 14:00 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: Error 64 - Host not available http://www.ISAserver.org Hi William, just to check the more obvious things: nslookup produces the right IP and works fine as I suppose. Second, the problem occurs regardless which browser you're using? Does this apply to any computer in the network or only a single one? What results does a tracert yield? An idea might be to check with the website if they have changed anything regarding to communications. Perhaps it's one of those MTU issues, is https involved? Are you able to test the site from your external ip network if you have one? Mark --------------------------------------------------------------------- Everything in this e-mail and attachments relating to the official business of Columbus Stainless is proprietary to the company. It is confidential, legally privileged and protected by law. Columbus Stainless does not own and endorse any other content. Views and opinions are those of the sender unless clearly stated as being that of Columbus Stainless. The person addressed in the e-mail is the sole authorised recipient. Please notify the sender immediately if it has unintentionally reached you and do not read, disclose or use the content in any way. Whilst all reasonable steps are taken to ensure the accuracy and integrity of information and data transmitted electronically and to preserve the confidentiality thereof, no liability or responsibility whatsoever is accepted if information or data is,for whatever reason, corrupted or does not reach its intended destination. ---------------------------------------------------------------------