I'm having the same problem, should I run a site survey at my house to see what channel settings I need to change? I'm replying on the 2.4 band, and like you, any time I enter the security code for...

As far as I know, you can't change a MAC address.... It's physically embedded into the device, and unique to that device. You can SPOOF it, but not CHANGE it. Do you mean the IP address?