[Wylug-discuss] Wireless oddness

Jim Jackson jj at comp.leeds.ac.uk
Wed Aug 3 09:56:32 BST 2005


On Tue, 2 Aug 2005, Stephen Patterson wrote:

> Hi
>
> There seems to be quite a lot of noise about wireless here, so I thought
> I'd post a question here, basically connection loss.
>
> I've got a linksys WRT54GS2 router running in WPA-PSK mode, with MAC
> access restrictions on, and I use a D-Link DWL-G650 wireless card in my
> laptop, with /home mounted from via NFSi (NFS server on the router's
> external interface, so packets coming through the firewall), and I'm
> using wpa_supplicant to manage the WPA auth.
>
> I can get get a wifi connection using either the madwifi drivers (ath0)
> or the windows driver through ndiswrapper (wlan0) but after a while the
> connection dies (dmesg only reports 'nfs server not responding'). I can
> usually re-establish connection by running dhclient manually.
>
> When the connection first fails, it is usually after the laptop's been
> running for a while, I can often reconnect using dhclient but then the
> connection drops off much sooner.
>
> During this, I've not moved the laptop, and its got good signal
> strength. There seems to be some correlation with the traffic volume as
> it seems to cut out sooner if I'm watching videos that are on the NFS
> mounted volume than if I'm just generally poking about on the internet.
>
> So, any suggestions?

configure a fixed IP instead of using DHCP. If that never dies, then it's 
something to do DHCP lease management. What is acting as DHCP Server?

Jim




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