The problem with selecting a core specifically is that they processors range from Original pentiums to Pentium III's and celerons.
When I try to ping anyone I get "unknown host rc5.casefinder.com" same thing for
www.yahoo.com and proxy80.teamanandtech.com.
Here is the update screen.
distributed.net client for Win32 Copyright 1997-2000, distributed.net
Please visit
http://www.distributed.net/ for up-to-date contest information.
dnetc v2.8010-463-CTR-00071213 for Win32 (Windows 4.0).
Please provide the *entire* version descriptor when submitting bug reports.
The distributed.net bug report pages are at
http://www.distributed.net/bugs/
Using email address (distributed.net ID) 'crackinfool@yahoo.com'
[Jan 20 19:53:23 UTC] Network::failed to resolve name "proxy.teamanandtech.com"
[Jan 20 19:53:23 UTC] Network:

pen Error - sleeping for 3 seconds
[Jan 20 19:53:26 UTC] Network::failed to resolve name "proxy.teamanandtech.com"
[Jan 20 19:53:26 UTC] Network:

pen Error - sleeping for 3 seconds
[Jan 20 19:53:29 UTC] Network::failed to resolve name "us.v27.distributed.net"
[Jan 20 19:53:29 UTC] Could not update to/from the net. Network down?
I get the same thing even when I specify a core, and when I try to use port 80.