Wireless network connection very unstable.

[daenth]

I'm having troubles with my internet connection in ubuntu right now. Well, a few actually.

First, when I compare my speeds between ubuntu and Windows, I'm getting double my link speed on Windows than on ubuntu.

Second, my internet connection periodically drops. Usually when I'm downloading a large file or putting a large load on my connection. I can't connect to the internet for a few seconds and then my connection just drops and tries to reconnect (which is does after a few seconds).

I've tried a few fixes I've found around Google but none of them have helped me. My wired connection is perfectly fine but my router is in a place where I can't use wired as my default connection. My wireless connection is the one with the problems.

sudo lshw -c network:

  *-network               
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0.2
       bus info: pci@0000:02:00.2
       logical name: eth0
       version: 0a
       serial: 20:6a:8a:84:f6:85
       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=N/A latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:42 ioport:2000(size=256) memory:f0404000-f0404fff memory:f0400000-f0403fff
  *-network
       description: Wireless interface
       product: AR9462 Wireless Network Adapter
       vendor: Atheros Communications Inc.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 01
       serial: 44:6d:57:b0:8b:e1
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless
       configuration: broadcast=yes driver=ath9k driverversion=3.2.0-29-generic firmware=N/A ip=192.168.11.150 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:19 memory:f0500000-f057ffff memory:dfa00000-dfa0ffff

[daenth]

Help?

[ectechnologies]

Hi,

What version of ubuntu are you on?

[steeldriver]

Have you tried the ath9k nohwcrypt option?

sudo modprobe -r ath9k
sudo modprobe ath9k nohwcrypt=1

This will set the parameter temporarily - if it helps with the disconnect problem post back and we can make it persistent via a /etc/modprobe.d conf file

[daenth]

I'm on 12.04.01 right now.

Have you tried the ath9k nohwcrypt option?

sudo modprobe -r ath9k
sudo modprobe ath9k nohwcrypt=1

This will set the parameter temporarily - if it helps with the disconnect problem post back and we can make it persistent via a /etc/modprobe.d conf file

I'll give this a shot.

[daenth]

Have you tried the ath9k nohwcrypt option?

sudo modprobe -r ath9k
sudo modprobe ath9k nohwcrypt=1

This will set the parameter temporarily - if it helps with the disconnect problem post back and we can make it persistent via a /etc/modprobe.d conf file

No go with that. A few minutes after I put that command in, the internet did it's normal crash. Space out for 10 seconds and disconnect.

[ectechnologies]

Have you checked additional drivers for wireless network adapter?

[daenth]

Have you checked additional drivers for wireless network adapter?

Yeah, I usually check the additional drivers page right after installing ubuntu and I had nothing on the page. Checking again, there is still nothing there.

[ectechnologies]

Are you on a satellite provider like hughes net? If so, you might only be able to use a set amount of bandwidth.

[daenth]

Are you on a satellite provider like hughes net? If so, you might only be able to use a set amount of bandwidth.

Running a fiber connection with no bandwidth caps and I'm usually getting 110 mbps download speeds, don't think that's the problem.

Another note, because the weaker link speed, I have to have my computer closer to the router and right now I have a 130 mbps link speed. The connection can't handle anything near that load though. I've noticed I can keep the connection running forever without it disconnecting, for example, if I'm just typing something up with nothing downloading. When I'm downloading something, watching a video, or browsing websites with a lot of media, it'll disconnect after a few minutes.