Ping doesn't work (but everything else does)
 

I have a network setup that is working fine and I have never had problems and (I think) I have always been able to ping things outside my network, but now for some reason I can't...

The internet and email works great, and I have tried to ping sites that are well known from within my intranet (small 7 computer network) to no avail, and these same sites I can ping from a PC outside my site no problem.

I know it has to do with DNS name resolution, but not sure why this is happening... (or how I can fix it)

there may be the ismp packets droped by firewallor ur service provided drops them....or tre is conjection in networks to the ttl value expires.............u didnt postes wt msg u get while ping???

Your "pings" are being blocked by a firewall somewhere. There is nothing wrong with your DNS if your internet applications are working correctly.

Try this...

traceroute google.com

or some similar external site. That will give you a good idea on how you can get with "ping" and beyond that, there is something blocking you.

-K