reply to krock83
Re: Cisco 881W Guest Wireless Password exparation I'm unsure about expiration feature. Even if it does exist, I imagine somebody (like you) has to change the password into something else.
What you could consider is to set up EEM to send network admins (like you) an email reminder to change the password at or by 30 days using event timer and action mail EEM commands. Here is the EEM link for details.