MacBook can connect to Internet, but not iMac

Using two Airport Expresses as a WDS network. Had to reset network. Now Network is back up. MacBook can see it just fine and connect to the internet. iMac see's it, but can't connect to internet. I also opened up Airport Utility on iMac and it can't see either airport express...
Any idea's?

Also, in network preferences, it shows Airport "Not Connected". But I can see my MacBook on the network.

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