About once to twice a day all of the internal PCs lose internet connectivity. Restarting the PIX resolves the issue. Also this may help in diagnosing, when internet connectivity is down I can still ping the PIX but cannot connect to it by using the PDM until after it is restarted. This PIX has been working fine with no problems for 3 years until these issues started about 1 week ago. To go ahead and answer the obvious question, no recent changes have been made to the network, the PIX or anything. Thanks in advance for any assistance.