In order to change a channel, I would go to WIRELESS > Access Points > Radios > 802.11b/g/n, and then hover your mouse over the blue drop-down arrow and click Configure
Chrome (Version 47.0.2526.80 m) no longer shows 'Configure' as one of the options when hovering over the blue drop-down arrow.
Internet Explorer and Firefox work fine.
Which web browser does Cisco recommend for GUI configuration?
Thanks