Cannot wireless connect to router to change settings since FM update

Since the last firmware update on my R6220 router I have not been able to login to the router to change its settings from any wireless connected device. I have tried both the 2.5 and 5 GHz nonGuest SSIDs. I have to plug a cable into the router to access the router's settings. Computers connected via a cable cannot see computers or devices connected wirelessly and vice versa. For example, my desktop connected with a cable to the router cannot see the wireless printer but if I disconnect the cable and turn on the desktops wifi and connect to the router it sees the printer. Wireless and wired computers cannot see each other to connect to a HomeGroup.

 

As a temporary fix I am using the desktops wifi abilities to connect to the router and only connecting a cable if I need to access the router's settings or to check for firmware updates. These issues only started with the last update.

 

Has anyone else had this issue or know a solution?