MacBook Air wifi NIC: supported channels I've had a problem with my Wi-Fi connection to a TP-Link router from MacBook Air. It has been solved by manually changing Wi-Fi channel on the router from "Automatic" to an average value.

What channel ranges do MacBook Air's Wi-Fi NICs support? Is there a way to tweak it to a required channel not visible by default?

P.S. My country is Ukraine and my router does have this value set.
The manuals for all Air are stored online at http://support.apple.com/manuals/#macbookair and it looks like the latest Air is certified under the EU and Russia - but I don't see a good way to know precisely which channels are supported from a pre-sales or reference.

You can however, open your System Information utility and select Wi-Fi. It should show you the current Locale, Country Code and supported channels for your network adapter.