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Ubuntu 14.04 internet problems

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  • Internet
  • Ubuntu
Last response: in Linux/Free BSD
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April 18, 2014 6:46:30 PM

I upgraded from 13.10 yesterday and with 13.10 it worked amazing. I upgraded and with 14.04 the internet is super slow, times out and disconnects all the time. This is wireless. If I can't get this to work I will prob go back to 13.10; how can I do that if it comes to that? First though I want to use 14.10 but I need the internet to work.

More about : ubuntu internet problems

April 19, 2014 2:19:02 AM

Before you reinstall 13.10 let's see what we can find about your system.
Type this in a terminal and post the results sudo lshw -C network


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April 20, 2014 7:57:31 AM

*-network
description: Wireless interface
product: AR9485 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlan0
version: 01
serial: 68:1c:a2:01:3a:67
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.13.0-24-generic firmware=N/A ip=192.168.1.129 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 memory:fea00000-fea7ffff memory:fea80000-fea8ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 07
serial: b8:97:5a:36:60:36
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:40 ioport:e000(size=256) memory:e0004000-e0004fff memory:e0000000-e0003fff

This is what the terminal said. It would be great to have the internet become what it was on 14.04 as it was on 13.10.
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Related resources
April 20, 2014 7:59:12 PM

Anything?
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April 21, 2014 3:22:35 PM

Wow a lot of info. I am not up to date on my Linux talk so this is over my head. I will do my best with these two answers.
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April 21, 2014 4:22:06 PM

  1. sudo rmmod ath9k && sudo modprobe -v ath9k nohwcrypt=1


adding nohwcrypt=1 disables possibly buggy hardware encryption..

In addition In the blog post from pkill-9, doesnt actually appear to do anything at all. Just installs wicd and uninstall gnome-networkmanager. Would be shocked if this fixed any issues.
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April 21, 2014 5:23:38 PM

Do what skittle says, he's the master of hardware here. Open a terminal either through the menu or hit the keys ctl+alt+t and copy paste the line in his post.
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April 21, 2014 5:45:16 PM

Cool. I'll give it a try.
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April 23, 2014 11:53:38 AM

So I did what skittle said and I still have the same signal strength. Still kind of weak signal.
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April 23, 2014 12:02:01 PM

Now I do have another wireless card that I tried with this computer, though it wouldn't connect when I installed it. It's in the link.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I would prefer to use the one in the link cause it's PCI. I would eventually like to put a GPU in my comp but cant with the current network card. Either way, the one I linked didn't work. It would not connect.

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April 23, 2014 2:30:49 PM

sudo lshw -C network
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April 23, 2014 5:07:29 PM

*-network
description: Wireless interface
product: AR9485 Wireless Network Adapter
vendor: Qualcomm Atheros
physical id: 0
bus info: pci@0000:01:00.0
logical name: wlan0
version: 01
serial: 68:1c:a2:01:3a:67
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
configuration: broadcast=yes driver=ath9k driverversion=3.13.0-24-generic firmware=N/A ip=192.168.1.129 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:18 memory:fea00000-fea7ffff memory:fea80000-fea8ffff
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 07
serial: b8:97:5a:36:60:36
size: 10Mbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
resources: irq:40 ioport:e000(size=256) memory:e0004000-e0004fff memory:e0000000-e0003fff

this is what i got...
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April 24, 2014 12:21:49 AM

Is that the new one? It's exactly the same as the old one and even the same ip address.
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April 24, 2014 10:00:29 AM

Could be driver bug. Load up 13.10 livecd and confirm if issue is still present.
Is it really a weaker signal or is it just reporting weaker signal? Is it measurably slower?
transfer some files over network to measure transfer speed
ping your router, via wifi should be ~1ms.

if you cant get the issue resolved: suggest posting on the ath9k mailing list, hopefully a developer will contact you and probably ask you to submit a bug report.
https://lists.ath9k.org/mailman/listinfo/ath9k-devel

Bug list for ath9k
https://bugzilla.kernel.org/buglist.cgi?query_format=sp...
lots of bugs ;) 
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April 24, 2014 10:22:13 AM

I will try all that when I get to my computer. What if I were to just buy a more reliable WiFi card?
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April 24, 2014 10:43:50 AM

maybe a good idea, though sometimes it is difficult to know beforehand what chipset is used in a particular card before you buy it. Many times manufactures choose to make multiple versions of the same card, v1,2,3... and use different chipsets for each version. Most stores will not tell you what you are getting.

Example: DWA160 has 5 different revisions:
https://wikidevi.com/wiki/D-Link_DWA-160_rev_A1

I suggest you start looking here for linux certified wifi cards
https://www.thinkpenguin.com/catalog/wireless-networkin...

You can check wikidevi for cards with similar chipsets
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April 24, 2014 8:18:53 PM

Linux >= 2.6.27, although 2.6.32 and newer recommended

Ubuntu14.04 is kernel 3.13, so yes it will work 'out of the box'
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June 13, 2014 4:39:07 PM

So i bought a wifi adapter from thinkpenguin.com which was suggested above and i am still getting a weak to ok signal. Still only 2 bars on the indicator in the corner. I don't know what the problem would be this time around. Anything I can do now? The card is the Penguin Wireless N PCI card for GNU/Linux v5.
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June 13, 2014 6:23:09 PM

Move closer to your router? Larger extenrnal antenna? Seems you are the limits of the hardware. Look for obstructions like water pipes or other metallic objects...
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!