WiFi problem: Changing my IP Address

[warpedpink]

I had to get a new wifi and apparently it messed everything up. No mater what AT&T and it's installers do, they can't make my Macbook connect to Wifi. This (attached screenshot) is what comes up.

I am able to connect my iPad and iPhone to the wifi, but not my laptop. HELP!!!!

 

[gmanterry]

192.168.1.254 is not a good address for a user device.

Hi:
The address 192.168.1.254 is the default IP address for some routers. If your system is "locked down" to MAC addresses then you need to change this for your laptop. Normally, people use DHCP and let the router decide the IP address of the device. It appears that your laptop may be set up for a manual IP address od 192.168.1.254. The Network preference pane for WiFi should look like this: