I have a PIX 501,IOS v6.3. I had to make some changes to the network last week and in the process, disconnected the PIX from the network. Upon reconnecting it (No changes were made to the config), it now hangs up from time to time, does not allow traffic in or out, had to be power cycled to cure the problem. This is not a huge deal, but I would rather not have to reboot my firewall twice a day. Also, while the PIX is hung up, it is pingable (if that helps)
I had a similar problem with a Linksys router at home, and cloning the MAC address from the ISP's modem fixed the problem. My network's Internet feed is cable and is from the same ISP that I have at home, so could this be a possible fix? Is there a way to clone a MAC on a PIX?