for the last week or so since we put in a pix 501 (6.3.4)with a 10 user license there has been at random times one PC (not always the same one) which cannot access the Internet on a LAN with 12 computers. The last time this happened I checked the PIX translations by doing a sh conn and it said 0 in use, 70 most used. There were 12 PC's in the ARP table, and I was able to restore access to for this PC by doing a clear xlate. Is this possibly a license issue, I know the conn table had 0 in use, but 1)how exactly does the PIX count this 10 user restriction?
2)Is there a specific syslog message that is generated when this count is exceeded?
3) I reduced the xlate timeout default to 30min and the conn timeout default to 20min, any other ideas on what could be happening?