Connect Wi-Fi Hotspot Through OSX Internet I have a question regarding creating a wifi hotspot using a router or a wifi card with a MacBook Pro running OSX 10.9.  Is it possible to create a hotspot using a separate wifi card or router? The connection coming into my device is also wifi.

Any ideas?
This should trivial to do using something like an Airport Express (or Airport Extreme, though I haven't personally done it there). The method I've used involves activating Internet Sharing from the Sharing Preference pane, selecting Wi-Fi for the signal source and Ethernet (or the second Wi-Fi card, if it's set up as a network interface in the Network pref pane) for the check box for "To computers using:".

Sharing Wi-fi -> Ethernet and Ethernet-> Wi-Fi has always worked fine for me using this method, ever since 10.3 or 10.4.