airport express not connecting to internet
I am switching from Clear to Comcast hopefully for faster, more reliable service.
Connected the Comcast modem directly to my Mac Mini, activated...voila on the internet.
Plug in Airport Express so that the Mini and my MBpro can share internet and a printer.
AE powers up,gives the green light, but no internet service.
System preferences>network states that WiFi has a self-assigned IP address of 169.254.xx.xx
that will not connect to internet.
With each reset the number changes slightly but still no internet. I tried a manual number or 192.168.xx.xx
and WiFi connects but still no internet.
1-1/2 hours with Comcast provided no help other than to call Apple. Is this really that difficult?
With Clear it was a snap, but I am at the edge of the coverage zone and it sometimes fades.
Please guide me through the steps.
Thanks,
JM
MacBook Pro, Mac OS X (10.7.4)