Mac keeps losing internet connection - Resolving Host
I've been using my current setup with no problems.
Out of the blue, my Mac Pro loses internet connection. At least, that's what it looks like. The browser keeps saying "Resolving Host" and just hangs up.
The only work-around has been to go to Network preferences and click Advanced and Renew DHCP License. This only works for a few minutes. Then it goes back to being stuck.
I've got an Airport extreme in the other room with 2 more macs running fine. This computer is a Power Mac running 10.6.8. It's hooked via ethernet into an Airport Express. I've also got an old Macbook downstairs that's working fine off the wi-fi.
Any ideas?
Mac Pro, Mac OS X (10.6.8)