My mac air will not connect to the internet. There is an exclamation point in the wifi icon and when i go into preferences i see that it is setting its own IP address. I have a macbook that is able to connect with no issue. HELP

My macbook air will not connect to the internet. There is an exclamation point in the wifi icon and when i go into preferences i see that it is setting its own IP address. I have a macbookpro that is able to connect with no issue. HELP

Reset the TC to factory and start again.
Use all SMB type names for wireless and base station.. Not apple type names.. this is more important since Mavericks.
I also recommend different names for the different bands.
So for example.
TC name.. TCgenx (I use whatever the generation number is for the x.. eg TCgen4 or latest one TCgen5)
WIreless name.. TC24ghz for 2.4ghz
TC5ghz for 5ghz
You can also set the channel manually.
If you still have issues.. start with no security and then if it fails to connect there is something seriously wrong with the laptop. Did you upgrade install Mavericks?? That can lead to driver issues.. I would recommend a clean install.

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