Ubuntu Networking :: Wifi: Always 100% Signal After 10.10 Upgrade (msi Wind U100)

Jan 1, 2011

since the upgrade i see all avaible wifi networks as they have 100% signal, both in NetworkManager and Wicd.in iwconfig and iwlist the signal levels change, but the link quality remains the same: 70/70 (see below). What could be worng? What can i do?

comp. model:

msi wind u100 netbook, ubuntu 10.10, kernel: 2.6.35-24-generic i686

lspci:

Code:

02:00.0 Network controller: RaLink RT2860
Subsystem: Micro-Star International Co., Ltd. Device 6890
Physical Slot: 0-1
Flags: bus master, fast devsel, latency 0, IRQ 17

[code]....

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[code]....

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Code:
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[code]....

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Here are the details:
Code:
Laptop : Lenovo U330
lshw -C network output:
*-network
description: Wireless interface
product: PRO/Wireless 5100 AGN [Shiloh] Network Connection
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:03:00.0
logical name: wlan0
version: 00
serial: 00:21:5d:0b:08:d6
width: 64 bits
clock: 33MHz
capabilities: bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn driverversion=2.6.35-22-generic firmware=8.24.2.12 ip=192.168.1.3 latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:46 memory:e4500000-e4501fff

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I would like to re-raise this topic that I have seen on other discussion boards but seems to be going no where.I have been using Ubuntu for many years now having switched from other distributions. All my machines ran some version of Ubuntu, until just recently. I upgraded my personal HP TX2500 from 9.04 to 10.04. No problems. After 10.10 had been out for a while I upgraded again. The wireless would drop when busy/(signal slightly weakened) etc. It would not function again unless the wifi module was reloaded.

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Systems running Linux

Dell D610
HP TX2500
HP NC6400
IBM T20

[code]...

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After being prompted by UpdateManager, I upgraded my Compaq Presario CQ71 from 10.10 to 11.04 yesterday. Most things seem fine, except that my wifi is disabled (it was working fine in 10.10).

Here are some details:

Code:

Code:

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Code:
rick@pond:~$ uname -a
Linux pond 2.6.38-8-generic #42-Ubuntu SMP Mon Apr 11 03:31:24 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

[Code]...

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Memory at 90306000 (32-bit, non-prefetchable) [size=4K]
Capabilities: <access denied>
Kernel driver in use: ipw2200
Kernel modules: ipw2200

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The network manager doesn't display available wifi nets. The output for lsusb is:

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I can take this laptop to somewhere with an ethernet connection for an afternoon if need be, but am currently stumped as to what to do. Obviously I know this machine can handle Wifi under Ubuntu - it's definitely a Natty problem.

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Jun 18, 2011

i have a dell 1501 that has been upgraded from 10.10 to 11.04. everything was working okay. and then the user ran an upgrade recently. subsequently the wifi has mysteriously stopped working. it connects okay if one plugs it directly into the router but the wifi seems to have just stopped working.my mini 9 connects fine to the netgear wifi router using wireless.when i run the system tests for networking i get the errors..."root could not find def gateway info /proc""root could not find default gateway by running route"here is the output from some diagnostic commands.NOTE:this is similar to a post titled "wi-fi dead?" but the output is not quite the same...

lauren@lauren-Inspiron-1501:~$ iwconfig
lo no wireless extensions.
eth0 no wireless extensions.

[code]....

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