Lately not being able to connect to up2date server

[Margaret Doll]

I have one system that cannot find the server.  When I run "up2date"   
or "up2date --register", I get

	An error has occurred
	Name or Service not known
	See /var/log/up2date for more information

	/var/log/up2date includes:

[Thu Dec 17 15:34:03 2009] up2date A socket error occurred: (-2, 'Name  
or service not known'
), attempt #2
[Thu Dec 17 15:34:48 2009] up2date A socket error occurred: (-2, 'Name  
or service not known'
), attempt #3
[Thu Dec 17 15:35:33 2009] up2date A socket error occurred: (-2, 'Name  
or service not known'
), attempt #4
[Thu Dec 17 15:36:18 2009] up2date A socket error occurred: (-2, 'Name  
or service not known'
), attempt #5
[Thu Dec 17 15:36:18 2009] up2date Name or service not known
[Thu Dec 17 15:36:18 2009] up2date   File "/usr/sbin/up2date", line  
1315, in ?
     sys.exit(main() or 0)
    File "/usr/sbin/up2date", line 759, in main
     if cfg['useRhn'] and not up2dateAuth.getLoginInfo():
    File "/usr/share/rhn/up2date_client/up2dateAuth.py", line 161, in  
getLoginInfo
     login()
    File "/usr/share/rhn/up2date_client/up2dateAuth.py", line 108, in  
login
     li = rpcServer.doCall(server.up2date.login, systemId)
    File "/usr/share/rhn/up2date_client/rpcServer.py", line 248, in  
doCall
     raise up2dateErrors.CommunicationError(e.args[1])


This system is on my list of system registered with RedHat on  
SystemList.do