Valid IP but no network traffic when dynamically switching network

G

Guest

Hi all,

I have a very strange problem that I haven't been able to resolve for over a
year, and I was wondering if anyone could shed some light on it.

I have a Dell Inspiron 9100 with Windows XP SP2 installed.

After owning the computer for about a year, my laptop developed a problem
wherein it could not switch from one wireless network to another, or from the
wired to wireless network, or vice versa. Basically, the thing will say that
it is connected, and if you run through the standard ipconfig release/renew
sequence it acquires a valid IP address (e.g. 192.168.0.100), however, no
network traffic will go through. I am able to ping myself fine, but if I try
to ping any other IP address, even the IP address of my directly connected
gateway (e.g. 192.168.0.1), I get timeouts and 100% packet loss. The only
thing that seems to resolve the problem is for me to reboot, with my computer
already connected to the network I wish to use.

The problem doesn't appear to occur in safe mode, so I believe it is a
software problem. Also, I've noticed that the installation of certain
software programs, namely, those which run in the background to check the
network for software updates (such as Sonic Update Manager) will exaccerbate
the problem, by making it so that 9 out of 10 times, my computer will not be
able to use the network even after a reboot (even though it always says it
has a perfectly valid network connection). I suspect this problem may be due
to the sequence of events during boot up, and these programs are trying to
access the network before it is fully available, which wouldn't be a problem
if dynamic network switching worked properly, but since it doesn't, it kills
me. I have had to uninstall or at least turn off the automatic start up on
load of any program which attempts to access the network before my computer
has completed its login sequence.
 
G

Guest

*BUMP* I really hope someone can reply to this message, even if you have no
idea, just some things that I can try or more info you would like. Please, I
am desperate.
 

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