Yes, After a reboot, CPU utilization doesn't immediately spike all the way up but gradually starts to climb until after a few minutes, it's at around 50 to 60%. Al -----Original Message----- From: MSU Network Administrators Group [mailto:[log in to unmask]] On Behalf Of Michael Surato Sent: Friday, July 17, 2009 4:05 PM To: [log in to unmask] Subject: Re: [MSUNAG] Dnscache in Svchost using over 60% of CPU? Am I correct in assuming that this persists through reboots? >>> On 7/17/2009 at 4:02 PM, Al Puzzuoli <[log in to unmask]> wrote: > Thanks to everyone who has responded. > Tried disabling IPV6, the problem remains. I've done checks for > viruses and malware, everything comes up clean. The machine is using > local DNS servers, and the default hosts file. > > At this point, I feel like the most satisfying solution would be a big > hammer but alas, I'm guessing that wouldn't go over very well. I'm > tempted to just do a clean reinstall of the OS, I'm betting there's a > good chance I wouldn't see this problem again, but I hesitate to do > that without understanding what's going on in the first place. > > Al > > > > > -----Original Message----- > From: Jeffrey Utter [mailto:[log in to unmask]] > Sent: Friday, July 17, 2009 3:26 PM > To: Al Puzzuoli > Subject: RE: [MSUNAG] Dnscache in Svchost using over 60% of CPU? > > You can try the suggestion in the last post in this thread: > http://social.technet.microsoft.com/Forums/en-US/itprovistanetworking/ > th > read > /d2a2ad2d-a406-410c-9b7a-e22104fd2e2e > > if that works I'll let you pass it along to NAG, but I didn't want to > spam them a solution I hadn't tested. > > Good luck, > > Jeff Utter > > -----Original Message----- > From: MSU Network Administrators Group [mailto:[log in to unmask]] On > Behalf Of Al Puzzuoli > Sent: Friday, July 17, 2009 2:57 PM > To: [log in to unmask] > Subject: [MSUNAG] Dnscache in Svchost using over 60% of CPU? > > Having an issue on a Vista Business box. Long story short, a case of > very high CPU utilization. I tracked the culprit down to the DNS > client service (Dnscache), but that's only half the battle. Now that > I know Dnscache is the offending service, what to do about it? This > machine is part of my domain. As far as I know, no other machines on > the domain are exhibiting the same issue. I tried doing an ipconfig > /flushdns, but that didn't matter. > > Anyone have ideas as to what might cause this and what I could do to > fix it? > > Thanks, > > > > Al Puzzuoli > > Michigan State University > > Information Technologist > http://www.rcpd.msu.edu > > Resource Center for Persons with Disabilities > > 120 Bessey Hall East Lansing, MI 48824-1033 > > 517-884-1915 >