Can't connect to the internet on WinXP using a wireless connection



My laptop almost learnt to fly 15 minutes back :-8

I am trying to connect my sony vaio laptop [winxp sp2, Intel(R)
PRO/Wireless 2200BG] to a DSL based broadband internet connection using
a wireless lan. The system is configured to pick up an IP address and
DNS server address using DHCP.

My problem is that the laptop does connect to the wireless router
[Microtek] but is not able to establish an internet connection [opening
a webpage in IE does not work]. I called up the service provider's
helpdesk and this guy concluded that the windows is not picking up the
correct IP address. The IP address should be in the 192.168.1.xxx
range, but windows assigns an IP address in the 168.xxx.xxx.xxx range.
When I connect my laptop to the wireles router using a ethernet cable,
an IP address in the 192.168.1.xxx range gets assigned and I am able to
log on to windows. Assigning an IP address manually on the wireless
connection didnt help.

I read on some internet post that some windows security updates cause
a similar problem where windows can connect to the wireless router, but
fails to receive any packets from it. My windows installation is upto
date with the most recent updates installed.

Please help!!

Thanks,
Amit

.



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