Solution 2 of failure to access the Internet in Ubuntu

I set up an IP address on the graphic interface yesterday. The route adds a route and can access the internet. Today, the IP address cannot be accessed. After an afternoon, the task was not completed, fortunately, the problem was solved.

1. static IP addresses are set.
VI/etc/Network/interfaces
2. Restart the network.
Sudo/etc/init. d/networking restart
3. Added DNS
VI/etc/resolv. conf
Add nameserver XXXXXXXX
4. Save the DNS address and set it to restart
VI/etc/PPP/peers/provider
Add "#" before userpeerdns
5. No Internet access is available,
Route: the default route is missing.
Route add default GW xxxxxx
6. OK. You can pull the webpage.

7. Check that my Samba cannot be connected again.

8. Reconnect. OK --!