WiFi has its own IP. you should connect to this IP, but if it hang, than you can not access it anyway.
The safest way is to use LAN not WiFi.
I have seen that wifi ip of antminer is 192.168.1.9 and with ethernet is 192.168.1.99. . The problem is that i cant connect to this ip when antminer is in wifi mode . It seems to reload forever in broswer.
I read that you can't have the wifi and wan IP in the same subnet.