inputs.text: credentials failure - found best buy 4star rating time writing 3star amazon baed upon 2 reviews took home attehempted configure extender apple airport express found frequencies 5 minutes handshakes mounted ex6100 long hallway minor obstacles basically lineofsight room around corner picked nice strong 3 bars previously struggled get 2 bars nice cannot actually use different ssid log manual clearly states use credentials username password use router case airport express tried 6 different devices osx ios windows log ex6100 invalid usernamepassword message every time logged airport express devices credentials without hitch compatibility problehem airport express not know rates zero regardless network device not play nice apple ecosystehem