connection going down literally every 2 seconds (vista doesn't)

[vistajustcrashedagain]

believe it or not, but vista is working better than Ubuntu at the moment. i installed Ubuntu 12.4 LTS along side vista on an hp laptop and it did great, until i updated it. now it connects and disconnects every 2 seconds even when i plug it into the Ethernet cable. and before you think it's the computer, when i went on vista the internet worked! so can anybody tell me whats going on and how to fix it?

[Bucky Ball]

Welcome to the forums. We have a better chance of helping you if you can tell us what release are you using. Also, open a terminal and put in these two commands one at a time:

iwconfig
sudo lshw -C network

Please post the result here. Thanks.

[vistajustcrashedagain]

i tried what you said, but it did not work. is there any other way or am i doing something wrong? please reply. Plus the Ubuntu i use is 12.4 LTS

results in terminal:

cmt@cmt-HP-Pavilion-dv6700-Notebook-PC-mick:~$ iwconfig
wlan0 IEEE 802.11bg ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off

lo no wireless extensions.


eth0 no wireless extensions.


cmt@cmt-HP-Pavilion-dv6700-Notebook-PC-mick:~$ sudo lshw -C network
[sudo] password for cmt:
*-network
description: Ethernet interface
product: MCP67 Ethernet
vendor: NVIDIA Corporation
physical id: a
bus info: pci@0000:00:0a.0
logical name: eth0
version: a2
serial: 00:1e:68:59:43:a1
capacity: 100Mbit/s
width: 32 bits
clock: 66MHz
capabilities: pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=forcedeth driverversion=0.64 latency=0 link=no maxlatency=20 mingnt=1 multicast=yes port=MII
resources: irq:42 memory:f6488000-f6488fff ioport:30f8(size=8) memory:f6489c00-f6489cff memory:f6489800-f648980f
*-network
description: Wireless interface
product: AR242x / AR542x Wireless Network Adapter (PCI-Express)
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 01
serial: 00:1f:e1:09:b0:62
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=ath5k driverversion=3.5.0-30-generic firmware=N/A ip=192.168.1.102 latency=0 link=yes multicast=yes wireless=IEEE 802.11bg
resources: irq:19 memory:f6000000-f600ffff
cmt@cmt-HP-Pavilion-dv6700-Notebook-PC-mick:~$

[praseodym]

Deactivate the hardware encryption of the wireless driver:

echo "options ath5k nohwcrypt=1" | sudo tee /etc/modprobe.d/ath5k.conf
sudo modprobe -rfv ath5k
sudo modprobe -v ath5k

For the LAN driver add two module parameters:

echo "options forcedeth msi=0 msix=0" | sudo tee /etc/modprobe.d/forcedeth.conf
sudo modprobe -rfv forcedeth
sudo modprobe -v forcedeth