I've seen this behavior from switches that were randomly rebooting. Check the uptime on your switches/and or firewalls.. Joe -----Original Message----- From: Al Puzzuoli [mailto:[log in to unmask]] Sent: Friday, March 05, 2010 4:15 PM To: [log in to unmask] Subject: [MSUNAG] Suggestions for Diagnosing Possible Intermittent Network Issues? Hello, We seem to be experiencing some very sporadic issues throughout our office. I have users complaining about intermittent lockups that last for a few seconds and then go away, slowness loading web pages, and very slow saving of Microsoft office documents to redirected folders on our server. We can sometimes go days without any reported incidents, but the last two days have been particularly problematic for some reason. I would welcome any suggestions for diagnosing these types of issues. Are there some network monitoring utilities I should be running? Thanks, Al Puzzuoli Michigan State University Information Technologist http://www.rcpd.msu.edu <http://www.rcpd.msu.edu/> Resource Center for Persons with Disabilities 120 Bessey Hall East Lansing, MI 48824-1033 517-884-1915