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Hello,
There seems to be a problem with my wireless connection. I am connecting with Network Profiles, to a Linksys WRT54G using WPA, using a Belkin F5D7000.
I'm getting disconnected (seemingly) randomly from the network. Disconnecting and reconnecting again usually fixes it, but sometimes it gets disconnected again after a few seconds. This is very annoying. Also, it seems to mostly happens from about 4:00 PM to about 8:00 PM, or later.
Also, there are other computers connected to the same network, running Windows, that don't have this problem, so I'm guessing it may be a problem with how I am setup.
Here is /etc/network.d/main:
CONNECTION="wireless"
DESCRIPTION="A simple WPA encrypted wireless connection"
INTERFACE="wlan0"
SECURITY="wpa"
ESSID="virus"
KEY="my key"
IP="dhcp"
Does anyone know what the problem might be? Thanks!
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Are there lots of access points (AP) around you? I use this command to see what is going on around me:
$ cat $HOME/bin/iw
#! /bin/bash
iwlist "$1" scanning | \
awk -F '[ :=]+' '/ESS/{ printf $3" " } /Chan/{ printf $6" " } /Qual/{ printf ($3 "\n") } /Encr/{ printf $4" " }' | \
sed 's/)//g' | \
sort -k4
Usage is 'iw eth1', replacing eth1 with the name of your wifi interface.
See how many AP are using the same channel as your AP. If a few APs are and their 'Quality' is high, then choose another channel. The channels which do not overlap are 1,6 and 11.
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Thanks for your reply.
I just tried that, and ended up with this:
~$ iw wlan0
8 32/100
on "JACKY"
on "virus" 6 27/100
I will also try setting it to a different channel and see if that works.
Thanks!
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hmm something is funky with how the script is parsing the output of 'iwlist wlan0 scanning'. The script should output something like:
"ESSIDNAME" 6 off 59/100
"ESSIDNAME" 11 off 73/100
.
.
.
etc
It doesn't look like you have too many AP's around you, so looking at the output of 'iwlist wlan0 scanning' shouldn't be too painful.
Last edited by steve___ (2009-10-16 00:20:53)
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I think choosing a different channel seems to have helped. It's been a few hours without it getting disconnected again. Before, it would disconnect after about 1-20 minutes.
Here is what I get with iwlist wlan0 scanning
~ $ iwlist wlan0 scanning
wlan0 Scan completed :
Cell 01 - Address: 00:14:BF:F3:F8:C5
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=27/100 Signal level=27/100
Encryption key:on
ESSID:"virus"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=00000003145ac18a
Extra: Last beacon: 3ms ago
IE: Unknown: 00057669727573
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0104
IE: Unknown: 2F0104
IE: Unknown: 32040C121860
IE: Unknown: DD060010180200F0
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
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Is 'virus' your AP? A signal strength of 27/100 is quite low.
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Yes, I know it's quite low. I'm just satisfied that it's working now, and when it does work, the speed is not too bad.
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Signal strength has nothing to do with speed and could be your problem or part of it. Is your AP far away from your computer? From the garbled output of that command I assume there was three APs around you. I assume someone was using an AP on the same channel as yours and it had a higher signal strength.
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Okay, I didn't know about signal strength and speed.
The AP is on the other side of my house, and there are a couple of walls in between, but I don't know how much that effects the signal strength. I think that the other AP did have a higher signal strength.
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To increase your signal strength (and thus stability of the connection) you could add a bridged access point to your network or you could try a 802.11n-router, that offer better signal strength...
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I'll be sure to try that sometime. Thanks!
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