The latest RouterOS version contains 'authentication-mode=wpa2-psk' (use [Tab] button to check the available commands).
'mode=dynamic-keys' is required together with authentication-mode=wpa2-psk.
'interface wireless set wlan1 security-profile=' (push [Tab] button to see the available security profiles, full information about security-profile 'interface wireless security-profile print'.
Client should have the same authentication options (mode, key etc.) as the access point for successfull communications.