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Wireless connection fails to reconnect

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kc7bfi

Post subject: Wireless connection fails to reconnect

Posted: Tue Nov 20, 2007 8:39 pm

Joined: Tue Nov 20, 2007 8:31 pm

Posts: 1

I am using a USB wireless network device. When my myth box starts up, the wireless network comes up normally. However, overtime, the box looses its network connection and does not automatically reconnect to the preferred network. I have to reboot the box to get it to connect again (or bring up a shell and restart the network). Is there anyway to have knoppmyth automatically reconnect the wireless network?

Thanks, David Robison

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cecil

Post subject:

Posted: Tue Nov 20, 2007 11:43 pm

Site Admin

Joined: Fri Sep 19, 2003 6:37 pm

Posts: 2659

Location: Whittier, Ca

You could write a script that restarts network. Then create a cron job that runs at X interval.

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mac

Post subject:

Posted: Wed Nov 21, 2007 8:37 am

Joined: Tue Feb 21, 2006 7:24 am

Posts: 396

Location: Dushanbe, Tajikistan

Here is one that I wrote to check my connection, this is called from crontab every ten minutes.. What is does is try to ping the default gateway address, if it gets a response it exits -- if not restarts the connection and logs the event to syslog.

Code:

#!/usr/bin/perl

open(DE,"route -n|");

while(<DE>){
    /^0\.0\.0\.0\s+(\d+\.\d+\.\d+\.\d+)/;
    $def=$1 if $1;
}

open(PING,"ping -c2 $def 2>/dev/null |");

while(<PING>){
    /\d+\sbytes\sfrom.*(ms)/;
    $res=$1 if $1;
}

exit if $res;

system("/usr/bin/con > /dev/null 2>&1");
system("/usr/bin/logger Wireless Connection Restart");

/usr/bin/con is the script that restarts the connection:
/usr/bin/con

Code:

#!/bin/bash
killall -v dhclient
iwlist wlan0_rename scan
dhclient wlan0_rename

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