How to change various settings of wireless connection in Android Short story: I upgraded my phone to Kitkat and can't get to the Internet using wifi. After a few check I detected Android had wrong setting: my wifi router use AES, not TKIP (WPA2,802.11n mode) 

I find it nowhere to change the setting, is there anywhere to set it? Google ain't my friend this time :(

Any ideas are appreciated :)
I manage to get it works by change the router wireless mode from 802.11n only to bgn mixed, or better option like Izzy suggests gn mixed