Netgear WNDR3400v3, when I use 'Netgear Genie' website to try to change security settings from WPA2-TSK to WPA-TSK + WPA2-TSK, (clicking the bubble next to WPA ... + WPA2 ... , then clickin 'apply') it automatically unfills the bubble next to the new security option I've chosen, and refills it next to the original WPA2-TSK setting, before applying the changes, when it reloads the webpage nothing has changed and it is at the original setting, even after turning off the router and on again then reloading the webpage. Why might this be happening, the password is 17 lowercase letters with no symbols, numbers, capitals, or spaces, if it is relevant.