3Com Gigabit LAN not seeing Router or Net

[Nick Kamenyitzky]

If ping is giving the message "network is unreachable" then you haven't 
set your static ip settings right

basically all you need to be able to ping your router is an ip address 
and the correct subnet mask

dhcp should just work (it is set up out of the box for the linksys) 
unless you have specifically disabled it (which i don't see why you 
would have).

try using dhcp and see how it goes

Tim Rutherford wrote:

>This is a recurring problem for me - 
>Asus P4P800 has builtin 3Com Gigabit LAN  (aka sk98lin or 3c940)
>on my system it's connected to Linksys router & telco ADSL. Works just
>fine under That Other OS (and Mandrake) but ubuntu, well..
>
>No autoconfigure with DHCP (do I need special settings on router, BEFSR41?)
>When I set IP addresses manually I still cannot "see" the IP address
>of the router. Ping gives "Network is unreachable".
>
>If I take Computer > System Configuration > Networking then I see eth0
>is there, but will not Activate. The check mark stays for <1 sec. I
>have manually entered my hostname (probably no benefit there) and DNS
>values from my router.  Hosts has six entries, most with ip6 in the
>Alias.
>
>What's up wizards?
>
>TIA
>Tim
>
>  
>