Hi All, I recently moved to a new office and have been unable to use the wireless network there with my MacBook Pro and was wondering if anyone could help me with some pointers/ideas to try since I can't think of anything else. Airport will always get a self assigned 169.x.x.x address with its default DHCP detect even though I am connected to the network with the correct SSID/WPA. I have the router's IP and subnet and figured I would just override the autoDHCP settings with correct ones and give myself an IP address in the valid range of the router. Flushed all caches, reconnected, got my self assigned IP address but no internet/network connections. I manually put in the 2 DNS server IP addresses in the area in case that was the culprit, but that has not changed anything either. I've disabled firewall, have only one active connection to any network which is on the wireless (and have triple checked that), and I still can't get anything. Now naturally, you might assume it is a problem with the router--restart it/it's a Mac only problem/etc. The router has been restarted and that fixed nothing. The other strange thing is that I am the -only- computer that has any sort of problem with this network. There are a variety of Windows XP and Vista towers/laptops on the network, as well as a variety of Mac OS X computers (all 10.4.10 as well) including iMacs, MacBook Pros, and PowerBook G4s. My computer is an identical model to another MacBook Pro that has no problems--they were ordered around the same time and have the same network cards. My laptop has absolutely no issues on any other network I have ever come across. So I guess I really have no idea what I should do from here; I'm not very familiar with the BSD networking stack and how to troubleshoot any issues that cropped up. I've been through the system log files and have found no abnormal entries from when I have tried to connect to that network or any other. Does anyone have any other suggestions? I'm tempted to spend my day tomorrow reformatting and installing OS X again on here hoping that some setting that is messed up will be restored, but that is like using a nuclear bomb to kill a fly, and I would prefer to ask here since many here are experts with these kind of things.