I have a new PIX 515 that I thought was working fine. I installed it yesterday with no problems. I came in today, and some people do not have Internet access. There are others who do have access. Everybody had access yesterday afternoon when I switched over to the PIX, but this morning a few people could not browse the Internet, though internal access was OK on these PCs. I could ping the Firewall and other devices just fine.
All the setting on the PC look OK. They are provided by the PIX which acts as a DHCP server. IP Address, Subnet Mask, Gateway, DNS. All look OK. If I set to static, these PCs still cannot connect. The only difference between yesterday and today, is that the PIX acted as the DHCP server to these PC this morning, whereas my other firewall was provided the DHCP leases yesterday. Still, this should not matter.
It is not a "first come first serve" issue either. I came in late today and was the last to login. By this time, two people informed me they did not have Internet access. I turned on my PC and it worked fine, though I was the last to login.