hAP ac lite - can't connect to this network

RouterOS Wireless Networking
1

I’ve recently received a new hAP ac lite router from my colleague that I’ve set up as a Wi-Fi access point at my girlfriends house, because her current network was terrible. I know a thing or two about networking, but I’ve never dealt with Mikrotik before, so I’ve used the quickset to set up two parallel networks 2.4GHz and 5GHz, set the password and be done with it. Both of our Android phones can connect to the Wi-Fi just fine, so does my Asus Rog laptop (Intel 7260), but I can’t connect her Acer Aspire (Atheros Ar5b22 T77h348.02), no matter what I tried. I defaulted the problem to a faulty Wi-Fi card and brought in another laptop, my spare Lenovo G700 that I use at home, but that won’t connect either. I haven’t got a clue what is the the model of the Atheros Wi-FI card inside, but the Windows recognizes is as (Qualcomm® Atheros® AR9485WB-EG).

I just reinstalled the OS on Acer (complete format), so that can’t be the issue, Lenovo is stuck on the previous Windows 10 Pro version (couldn’t be bothered to update to Creators Update), but my Asus is running the same version as Acer and works just fine.

Am I missing some obvious setting? I played with frequencies, channels, security settings, etc., Asus and Android connects fine, but Atheros cards won’t budge.

2

Try these generic settings. Change the SSID and password, naturally.

/interface wireless
set [ find default-name=wlan1 ] band=2ghz-b/g/n channel-width=20/40mhz-eC country="united states" distance=indoors frequency=auto mode=ap-bridge wps-mode=disabled ssid=MYSSID
set [ find default-name=wlan2 ] band=5ghz-a/n/ac channel-width=20/40mhz-Ce country="united states" distance=indoors frequency=auto frequency-mode=regulatory-domain mode=ap-bridge wps-mode=disabled ssid=MYSSID 

/interface wireless security-profiles
set [ find default=yes ] authentication-types=wpa2-psk group-key-update=60m mode=dynamic-keys supplicant-identity=MikroTik wpa2-pre-shared-key="PASSWORD"