Mikrotik iOS 1.2.5 winbox

Having bought new RB962UiGS-5HacT2HnT and incorporating it onto my network build on other types of MT… Issue is that iPhone / iPad with Mikrotik iOS 1.2.5 winbox application is not able to connect to RB962UiGS-5HacT2HnT… Sometimes after couple of consequent attempts it gets connected to router but after 2-3 seconds gets disconnected. No such issues present for other MT… Winbox installed on Windows recognizes no issues and connects to RB962UiGS-5HacT2HnT correctly…