Ubuntu internet not working

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TheGarza

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Nov 12, 2013
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I just installed Ubuntu on my newly built PC but I can't seem to get the internet working. I got to the point where it says that my connection is established after I edited the IPv4 stuff but when I try to open up a website it says connection failed bla bla bla

If it matters, Ubuntu didn't install all the way... it went through all of the installation and said it failed to install grub or something like that.

Also, I am using a wired connection
 
Solution
Ijack
I've done a bit of digging and it turns out that this is a known problem with 64-bit Ubuntu on this particular motherboard: http://ubuntuforums.org/showthread.php?t=2111223&page=2

Solutions I would suggest are:

1. Make sure you are using the latest version of Ubuntu,
2. Install the 32-bit version rather than the 64-bit one, or
3. Try a different distribution - Fedoa and SuSE are good ones but I have no idea whether they will work with that motherboard.
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Ijack

Ijack

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Jul 30, 2008
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I wonder if that could depend upon what chipset your NIC uses? I wonder if knowing at least something about your hardware would help people to answer your questions?

You will get a lot better response with a meaningful question with all relevant details of hardware used and error messages received.
 
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TheGarza

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Nov 12, 2013
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i don't get any error messages but I am using a Gigabyte 970A-D3P with an AMD FX-8320
 
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Aristotelian

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Jun 21, 2012
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It should install connect out of the box. In fact it should connect to the internet during the install process to download updates. What happened when it tried to do that? I would suspect a prob,lem with the hardware Try googling your motherboard and support issues in linux and see if it has come up in any forums.
 
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Ijack

Ijack

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Jul 30, 2008
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Saying the network isn't working but there are no error messages is a bit vague. How exactly do you know that the network isn't working? What exactly isn't working? And did you configure the network for DHCP or did you set a fixed IP address?

The first step is to open a terminal and type

sudo ifconfig -a

Tell us exactly what response you get to that command.
 
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TheGarza

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eth0 Link encap:Ethernet HWaddr 74:d4:35:04:a5:0e
inet6 addr: fe80::76d4:35ff:fe04:a50e/64 Scope:link
UP BROADCAST RUNNING MULTICAST MTU:1500 METRIC:1
RX packets:529 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:58354 (58.3KB) TX bytes:0 (0.0 B)

lo Link encap:local Loopback
inet addr:127.0.0.1 Mask: 255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:6536 Metric:1
RX packets:1858 errors:0 dropped:0 overruns:0 frames:0
TX packets:1858 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:13287 (132.2 KB) TX bytes:13287 (132.2 KB)

 
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stillblue

stillblue

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To expand on Ijack, does your wireless source automatically give you an address or do you have to use a specific assigned one?
Have you activated wireless? Right click on the network icon upper right corner.
If you have to use a specific address then that is also where you do it, like iJack said IPv4 is where you do that under edit connections.
 
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Ijack

Ijack

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It's a wired connection but, yes, it's a problem with the network configurations. I'm rather assuming that the OP is using a router, and that it is set to give DHCP addresses, but we haven't been given this information so I may be wrong.

Still, at least ifconfig establishes that the NIC is recognized and working.
 
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TheGarza

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Nov 12, 2013
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Okay so I found online that if you enable IOMMU in the BIOS then it would work and it does now. But now I have another issue, when I enable IOMMU, my internet works fine but then my USB 3.0 slots don't work but my USB 2.0 work. When I disable IOMMU, my USB 3.0 slots work but my internet does not and my USB 2.0 don't work.
 
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Ijack

Ijack

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Jul 30, 2008
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I've done a bit of digging and it turns out that this is a known problem with 64-bit Ubuntu on this particular motherboard: http://ubuntuforums.org/showthread.php?t=2111223&page=2

Solutions I would suggest are:

1. Make sure you are using the latest version of Ubuntu,
2. Install the 32-bit version rather than the 64-bit one, or
3. Try a different distribution - Fedoa and SuSE are good ones but I have no idea whether they will work with that motherboard.
 
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