Hello, This is really getting on my nerves in a major way. About 2-3 times per day (sometimes more), our ISA Box reboots - and all the Event Viewer can tell us, is that the "System Shutdown Unexpectedly" (well no duh) - and there is nothing else of any value whatsoever, that tells us what it may have been. This is totally unacceptable - and I need to get to the bottom of it. Honestly - I've installed about 6 ISA Boxes - in several different corporate environments - and I am quickly losing confidence in ISA Server - as it just does not run like a true corporate firewall should. In every case, we install the software in a Windows 2000 domain environment, on ultra-quality Servers, SP1 & FP1, Windows 2000 SPx (the latest), etc. We are always patched with the latest software upgrades, and I own every ISA Book written (so needless to say, I do my homework). What could this be? ISA Server may be wonderful - but it's only as good as the Machine, and Operating System that it runs on top of. Maybe it's time to purchase an Internet Appliance for this mission critical task - as I can't bank my life on something that is unreliable. Is ISA Server truly a corporate solution??? Are all of you having good luck in general with the Software? I searched the Infobase on MS's site - and it comes back with NOTHING regarding random reboots, and other such topics. Is there anything I can check, that can narrow down why this is happening to us? Is it an attack potentially? I would appreciate any information that could help us out. Thanks, Mike