Hi Wilke, You might want to check your client's DNS settings, if your client's settings are pointing to your internal DNS servers, make sure your internal DNS servers are resolving external domain names properly. If your clients DNS settings are pointing to the external DNS servers, then verify what Greg mention, and make sure your DNS filter is configured correctly. -----Original Message----- From: wilke [mailto:wmurakami@xxxxxxxxxxxxx] Sent: Monday, August 13, 2001 10:30 AM To: [ISAserver.org Discussion List] Subject: [isalist] Dns lookup error http://www.ISAserver.org I have a isa server that have an securenat clients trying to access external DNS, I can ping the dns but when I try to make a "nslookup" the isa server return a timeout. Please if somebody knows what is the possible cause of this problem please let me know. Thank´s Wilke -----Original Message----- From: Kern St. Lousi [mailto:kstlouis@xxxxxxxxxxxxxxx] Sent: Wednesday, August 08, 2001 11:22 AM To: [ISAserver.org Discussion List] Subject: [isalist] Intermittant 502 Errors http://www.ISAserver.org Hi. I wanted to know if others have experienced this issue. Intermittantly, users are experiencing 502 errors when trying to access random web sites. The clients are using IE 5.x. This is a new installation. One in ten sites, being accessed, will experience this. Can anyone assist me with this issue Thanks Kern St. Louis ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: wmurakami@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: david@xxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')