Cat /etc/resolv.conf and see if the right nameserver is listed.
I'm not sure what you mean by that...
Here is my kernel IP routing table:
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 eth0
Sometimes it works (especially if I boot up TC after I just had DSL or some other OS working the internet connection properly), but it is certainly not a reliable thing.
I'll try netcard config - DHCP (even though I don't have a wireless net card).
BTW, I have the same trouble when using Slitaz and PCLOS, too.