Limited wireless network connectivity

When I try to connect my laptop to the office network it does not obtain a correct IP address (i.e. wrong ip range) and seems to only allow traffic in one direction (Sent 742 packets - received 7 packets).  Does anyone know why this might be?
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What IP range should it get and what is it getting?
ruairi56Author Commented:
Sorry I am not getting an email to tell me someone has replied!

IP address of Router
Subnet mask
Default Gateway

IP address of pc
Subnet mask
Default Gateway
What happens if you disable all security (WPA, MAC filtering etc) on the router? What OS are you running on the PC you are trying to connect with? Are you using the wireless NIC manufacturer's 3rd party utility or an OS builtin utility to connect with?
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ruairi56Author Commented:
Ill try it shortly but I have been using this laptop for a year on this network! as far as I am aware there is no change to the laptop or the network!
The 169 IP range means you are not talking to the DHCP server at all.  If you are using WPA you may need to rebuild your connection profile (type everything in again like a new connection) to get it up and going.  If you are using WEP you may just need to reboot the router as a bad wep key will just cause you to not send packets but will can tell you the connection was successful.

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ruairi56Author Commented:
The magical reboot seems to have worked the trick!  Should have thought of that first!
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