totally agree with this, I work in network services for an SP and our tier 1 guys get loads of wireless calls and the majority are resolved by changing the channel on the hub. Just see which channels are in use locally and pick a free one (pref with a bit of gap) theres plenty of free programs available for this or free phone apps that will give you the channel info you need
or just use good old cmd prompt - netsh wlan show networks mode=bssid
There are only 3 non-overlapping channels in 2.4GHz, if you pick anything other than 1, 6 or 11 then you've done it wrong. Most kit that sets channels automatically will pick one of those three.