The harddrive in my laptop which previously ran Vista crashed. So I bought a new hard drive and didn't want to spend 200 dollars for a new operating system. Therefore I went with Ubuntu, which I absolutely love. Now the problem I'm having is that I can't figure out how to connect to the internet. When I replace the hard drive with one that runs Vista I can connect to the internet just fine. However I'm in love with Ubuntu and I want to have my internet service on the Ubuntu OS. I've played around with the networking tools and have tried all sort of things but since I'm relatively new with Linux OS I haven't been able to get anything to work. I've been able to pick up other people's wi-fi signals and get internet just fine. So I've got to imagine that there HAS to be a way to use my Xfinity service on my Ubuntu OS. Any help would be greatly appriciated otherwise I have no choice but to cancel my subscribtion from Comcast and complain for not forewarning there customers that Xfinity is not Linux freindly.
I have a HP pavilion dv6700 connected directly to my modem. I believe it's ubuntu 10.10. I'm not that familiar with it. But I feel like I might have to somehow manually set up a "wired connection" or a "VPN".
I have a laptop with a Ubuntu derivative on it so the steps should be similar... what I have found seems to be that the Ubuntu Network Manager will overwrite any manual edits made to the config files... so you will need to use the Network Manager to setup a connection with eth0 (that is typically the name of the first wired network-card -- wireless is usually wlan0).
The Ubuntu network manager can be found using the menu System -> Preferences -> Network Connections.
That's the problem I'm having.. I'm surfing right now using my other hard drive that has vista. And if i switch it out for the one that has Ubuntu and open the network manager it won't show "eth0" or anything for that matter in the wired network tab. All the other tabs have nothing to choose from either. However if I keep my wi-fi switch off and click on the network icon on my desktop I'm only allowed one option - "Auto-Ethernet". Everytime I try to connect, it fails. The guy from comcast seemed to think it's because they don't support linux systems. Now I'm not very tech savy myself, but I find it hard to believe that comcast would purposely make sure that Linux OS's were unable to use their services. So I got to believe there's a way to do so. Which is why I'm stumped with this one.
If the network manager doesn't show eth0, then you likely have a deeper problem than DHCP, likely drivers. But we'll need to see more specific information:
1. Is there a check mark next to Enable Networking when you right click on the network applet in the task bar?
2. Screenshots would be nice, but I see that will be a problem since you have no networking to post them, so just describe them in detail.
3. Describe the Connection Information dialog.
4. Describe all tabs on the Edit Connections dialog, especally the Wired tab.
5. If there are no connections listed in the Wired tab, run the command "sudo ip addr" and post the output.
6. If that command lists network interfaces, find eth0 and note the MAC address (it will look like 6 pairs of hex numbers separated by a colon. If nothing shows up here, we will have to go in another direction.
7. Add a connection manually by pressing the Add button on the Wired tab. Up should come an editing dialog.
8. Give the connection a name (whatever you want), and check Connect automatically.
9, On the Wired tab, enter the MAC address you noted above.
10. On the 802.1x Security tab, make sure Use 802.1X security for this connection is NOT checked.
11. On the IPv4 Settings tab, select Automatic (DHCP).
Thanks for all your help guys. I greatly appriciate it. I haven't solved the problem yet because I'm at work. And I only have one laptop at home so I have to switch out my hard drive to try follow your instructions the best I can and then once I have switched my hard drives back to get internet agian I will post the results later tonight. Thanks again!
Glad you got it working. I'm kind of curious how the normal default entires were missing. During installation, the proper entries for your system are created. Since the connection works, I would have expected the scan to find the adapters and add the appropriate entries. I don't know much about the Ubuntu install, so I really have no insight into why it didn't work properly in this instance.
Well I something must have been wrong with the install. I got it off a cd a freind gave me. When i tried the first suggestion whiched called for me to manipulate the file /etc/sysconfig/network/ I didn't even have that file.