While I never use the default password on mine, or any of my clients routers, this is another reason exactly why I do not use DHCP or DNS supplied from the router, just another security percaution.

My LAN is static, completely. This why I can look at the router and see every IP address that is being used, and track it, know what it is and if I see anything suspicious, I'll know right away.

I also, always set DNS in my machine as well. I know the convenience of allowing DHCP to just provide it but I like to know what IP addresses are being used, when, by whom and why. Along with that, having DNS set on my machine allows me total control over what DNS servers I want to use. Very nice.

The only time I turn on DHCP is when you come in town haha. Yes, changing the password would allow DHCP with no issues but again, I like to track all IP's in use.

-Matt