Posted 08 August 2009 - 10:41 PM
IS the DSL box limiting MAC addresses of computers that can connect?
If so you need to add friend's MAC address.
After connecting the laptop did you reboot?
Chances are it will automatically sort itself out after the reboot.
If not, open Network connections Start > Settings > Network Connections,
Fnd the connection that you think should work (the same as on your computer),
On General tab look for one of the last items, "Internet protocol TCP/IP"
Click on it
It might have a fixed IP address, so change it to Obtain IP automatically
Do the same for the DNS, or do whatever is on your computer.
OK few times and wait a bit. It might work.
If not, post some detail so that someone can help.
You can also post information from ipconfig:
Start > Run, type cmd
on the black screen type ipconfig /all and hit enter
copy the text and paste here
Finally, in the same cmd window try this
it will clear the current IP and make it 0.0.0.0
then type ipconfig /renew
in order to get a new IP. I don't think it will work if your earlier attempts failed though.