I had the same issue. I was told that it is a known issue inside Microsoft and that ISA SP1 fixes it. There is supposed to be an article Q313987 that isn't available to the public that describes the problem. Have you upgraded to SP1? Karl Schneider Web Technologist kschneider@xxxxxxxxxxxxxx <mailto:kschneider@xxxxxxxxxxxxxx> http://www.formfactor.com/ -----Original Message----- From: Mark Hopkins [mailto:mark@xxxxxxxxxxxxx] Sent: Monday, April 01, 2002 8:55 AM To: [ISAserver.org Discussion List] Subject: [isalist] RE: what caused DNS to die http://www.ISAserver.org Jay, Is the DNS Server running on a W2K Domain Controller? Mark -----Original Message----- From: Jay J. Mobley [mailto:jmobley@xxxxxxxxxx] Sent: Monday, April 01, 2002 10:38 AM To: [ISAserver.org Discussion List] Subject: [isalist] what caused DNS to die http://www.ISAserver.org Im not getting ANY dns resolution from outside my network. Inside I do just fine. My DNS server has TONS of EVENT ID 5504 The DNS server encountered an invalid domain name in a packet from xxx.xxx.xxx.xxx. The packet is rejected. I have had LOTS of issues with this ISA server randomly rejecting DNS. anyone have any ideas? -Jay ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: mark@xxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub') ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: kschneider@xxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')