i did a little check and this works for me in diablo running the update that came out today:

1. go into host mode
2. connect usb nic, wait for it to finish complaining
3. put/get ip address on eth0:
#udhcpd eth0
4. UNLOAD THE WLAN MODULE:
#rmmod cx3110x
5. open web browser, it works

i dont know if the gconftool...DUMMY command is necessary for this to work, but i did do that prior to all of this.

the wlan icon blinks endlessly, but everything seems to work fine.

i cant seem to reload the cx3110 module with modprobe. any way i try, it complains about being unable to parse modules.dep, which doesnt seem to exist on my n810. because of this, to get wlan back i simply reboot -a small price to pay =]