Configuring your Wifi Access Point
Channels and Protocols:
Protocol
If you can, set to g, b, a, or n. Mixed modes can cause problems.
Encryption
WPA2-AES is strongly recommended
WPA if WPA2-AES isn't available
WEP 128 if WPA isn't available
Short Guard Interval
(N only) If you are dropping connection too often, set this to
off.
Long Preamble
Set this to enabled: it allows the phone's low power radio states to
remain connected.
Channels
Channels 6 tends to be default. If you are having interference
problems (lots of drops, difficulty with initial connection) try
setting to channel 1 or 11.
Caveats:
Hidden SSID
Android will not operate correctly with hidden networks. You must enable SSID broadcast for Android compatibility.
Ad Hoc
Non-infrastructure (peer to peer) wif networks aren't supported at this time by Android.