[solved] DNS resolving problem

[traxxus]

Hi

Something is wrong with my DNS in my network (no AD, only workgroup).
If want to ping an internal hostname with "Diagnostic - Ping" , it can't resolve the hostname to IP.
But if i do it with www.google.com, it works.

In the "General Setup" on webgui aren't any DNS configured, and the option "Allow DNS server list to be overridden by DHCP/PPP on WAN" is enabled.
If i turn off "Allow DNS server list to be overridden by DHCP/PPP on WAN", i can't surf on the internet.

I'm running pfSense 2.1 RC0 btw.

EDIT: I have solved it now:

In General Setup page i have disabled the option "Allow DNS server list to be overridden by DHCP/PPP on WAN" and entered manually 3 DNS of my ISP and one of google.