Poor link quality in Ubuntu

WLAN adapter and miniPCI-express slot
Post Reply
MSX
Posts: 5
Joined: Wed Sep 23, 2009 7:32 am

Poor link quality in Ubuntu

Post by MSX »

Hello, i've set up the wireless in ubuntu 9.4

It's all working (i can connect and all) but the link quality is quite bad, i can't figure out why.
Here's my iwconfig output:

Code: Select all

nicola@serv:/etc/network$ iwconfig wlan0
wlan0     IEEE 802.11bg  ESSID:"Lair"
          Mode:Managed  Frequency:2.447 GHz  Access Point: 00:18:xx:xx:xx:xx
          Bit Rate=54 Mb/s   Tx-Power=20 dBm
          Retry min limit:7   RTS thr:off   Fragment thr=2352 B
          Power Management:off
          Link Quality=16/100 Signal level:65/65
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0
Note that link quality is very bad but signal level is at max, indeed the server is very near the router (a couple of meters).

Here's my /etc/network/interfaces file:

Code: Select all

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

auto wlan0
iface wlan0 inet static
        address 192.168.0.6
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        gateway 192.168.0.1
        dns-nameservers 192.168.0.1
        wireless-essid   Lair
        wireless-key     xxxxxxxxxx
        wireless-channel 8
        wireless-mode    managed

any idea ?

Evilworm
Posts: 5
Joined: Sun Dec 06, 2009 2:48 pm

Re: Poor link quality in Ubuntu

Post by Evilworm »

Maybe you have a faulty antenna? The stock antenna is pretty small and does not cover a large area, too. Also you might try to switch to a different channel if you have a noisy neighborhood...

Post Reply

Return to “WLAN and miniPCI-e”