Intermittent loss of network connection problem with Lucid

[NoOp]

On 05/10/2010 03:37 AM, zongo saiba wrote:
...
> 
> I had the exact same issue with 10.0.4 and a Cisco Router. I went from
> DHCP to static but to no avail. I suspected my ISP and I installed
> just behind the router a WL-330 sitecom (range extender access point);
> then  my connection got a lot more stable. In two days, I haven't had
> any loss of connection being wired or wireless. I cannot say for sure
> to this day what is causing the issue. All I know for fact is that
> 10.04 is not happy when I extend my wireless network wirelessly with
> the WL-330. It works perfectly when the WL-330 is connected to the
> Cisco Router via Ethernet and then all the clients can connect to the
> WL-330 wirelessly. I am really unsure of the issue here, but I have
> stablize my network. The ideal situation for me would be to have the
> connection to the Cisco Router wireless from the WL-330  but I am
> unable to make it work that way. If anyone out there has done it all
> help is much appreciated.
> 

I experienced something similar while testing this issue. I had the test
machine set to a static IP address & used Network Manager (NM) to reset
to dhcp and test the dhclient commands that I suggested & then monitored
my router (Cisco/Linksys BEFVP41 - wired).

I found that dhclient was going out and requesting a dhcp for the fixed
IP address rather than trying to get a clean IP in the range that the
router was set for (192.168.2.110 - 192.168.2.120). Even cleared the
dhcp assignments from the router w/the routers software, etc., etc. I
finally ended up powering down the router and the test system, waiting
awhile & powering the router back up, then the test system. Since then
the dhcp is working (on both). So I'm not sure if it is the router (it's
quite old & has been a bit flakey since upgrading it's firmware last
year) or dhclient in this case. My guess would be the router, but I have
no such issues getting a dhcp assignment on another system using wicd.
  I normally use wicd instead of NM. But given that it's a test machine
I want to keep NM on it for testing. I'll reset to a static & then see
if I can replicate when I get time.