Lose ability to resolve every 60 minutes or so

[William Ingram]

Hello,

About every 60 minutes or so, I completely lose the ability to resolve,
getting a "Temporarily Unable to Resolve Domain" error.

The ability to fetch mail also ceases at this point.

If I am logged into irc, or servers via ssh, they continue to function,
unless I log out, then they cease as well.

Rebooting sometimes fixes this, other times, no.

I cannot find the reason for this, the only thing I see is the
following:

@parts-unknown:~ $ sudo ifdown eth0
Password:
Internet Systems Consortium DHCP Client V3.0.1rc14
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/eth0/00:0c:76:a2:24:54
Sending on   LPF/eth0/00:0c:76:a2:24:54
Sending on   Socket/fallback
DHCPRELEASE on eth0 to 68.114.38.210 port 67

@parts-unknown:~ $ sudo ifup eth0
Error for wireless request "Set Encode" (8B2A) :
    SET failed on device eth0 ; Invalid argument.
Internet Systems Consortium DHCP Client V3.0.1rc14
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/eth0/00:0c:76:a2:24:54
Sending on   LPF/eth0/00:0c:76:a2:24:54
Sending on   Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
DHCPOFFER from 10.151.64.1
DHCPREQUEST on eth0 to 255.255.255.255 port 67
DHCPACK from 10.151.64.1
bound to 24.241.199.192 -- renewal in 1595 seconds.
eninja at parts-unknown:~ $

the key part of that being:

Error for wireless request "Set Encode" (8B2A) :
    SET failed on device eth0 ; Invalid argument.

as I have no wireless devices whatsoever on this computer.

Any help with this would be appreciated, as it is a bit dangerous
monitoring servers with this happening heh...

On a side note, I have contacted my Cable provider, and they see no
reason why this happens, and it doesnt occur with other operating
systems.

Thanks,

-Will