Tim..

On my 502, DHCP is set to default dynamic...although I have a static IP.

On the PAP2, as I mentioned in a previous post, the DNS is set to the IPs for OpenDNS. 208.67.220.220 and 208.67.222.222
Has been this way since I got it from you and for whatever reason, hasn't missed once since inception.
Also, I have my router set to DHCP as well, even though I have a static IP.

Perhaps the fact that OpenDNS rolls with the punches, it never gets hung up with a DNS problem..

Although I am registered with OpenDNS, I do not have it activated. For you to have programmed it in originally, did your company have to register and set it up?