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Firstly, Wi-Fi works 100% of the time on my Ubuntu netbook, my Android phone and my Windows install (on the same computer/USB-wifi device), so I don't think this can be a router issue... It would be strange if it were a driver issue as it sometimes connects, but FYI the USB-wifi device is a Edimax EW-7318USg.

Second, if it does connect (during this session) then it connects first time, else it will not connect (no matter how long I try). Wi-Fi does connect about 20% of the time (restarting the computer about 5 times usually allows me to connect). Once it has connected it stays connected (until restarted).

Obviously it is hugely irritating! Any ideas how I can remedy this?

EDIT: As requested, the results of running sudo lshw -class Network:

description: Ethernet interface
       product: MCP77 Ethernet
       vendor: nVidia Corporation
       physical id: a
       bus info: pci@0000:00:0a.0
       logical name: eth0
       version: a2
       serial: 00:19:66:d3:fe:21
       capacity: 1Gbit/s
       width: 32 bits
       clock: 66MHz
       capabilities: pm msi ht bus_master cap_list ethernet physical mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-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:41 memory:fcf7c000-fcf7cfff ioport:c880(size=8) memory:fcf7e400-fcf7e4ff memory:fcf7e000-fcf7e00f
  *-network
       description: Wireless interface
       physical id: 1
       bus info: usb@1:2
       logical name: wlan0
       serial: 00:0e:2e:4d:ff:b4
       capabilities: ethernet physical wireless
       configuration: broadcast=yes driver=rt73usb driverversion=2.6.38-8-generic firmware=1.7 ip=192.168.2.6 link=yes multicast=yes wireless=IEEE 802.11bg

Is this a known bug or should it be filed as one? (if so, which or against what?).

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google didnt bring up any hits for that model - are you sure if it is correct? Please add to your question the results of sudo lshw -class Network – fossfreedom♦ May 27 '11 at 21:54
My mistake, I misread the S for an 8, it's actually an EW7318USg. Thanks! – haydoni May 29 '11 at 8:45
@fossfreedom I have corrected the device name in the question, and inserted the results of sudo lshw -class Network. Many thanks. – haydoni May 29 '11 at 8:57
This question should instead be filed as a bug report, and as such is off-topic, thanks! Instructions here. – bodhi.zazen Feb 27 at 19:22
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closed as off topic by fossfreedom♦ Feb 27 at 19:34

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1 Answer

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Find out if any log entries are helpful - I usually do:

touch $HOME/now

Record the time right now. Then, make the event happen (or, wait until the event happens, doing periodic touch $HOME/nows.

Then, after the event has happened, do find /var/log -cnewer $HOME/now to get a list of the log files that were changed between the most recent touch $HOME/now and the find command. Look at the last N lines of each.

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