Logging in with LAN ip from Mikrotik router RB 750

I have a starnge problem
I can log in to the router from WINBOX with MAC address
But with IP address I cannot log in
When I click the WINBOX connect to…I get MAC and IP address (192.168.120.1)
But when iselect IP address…I cannot login to the router…Please help me
I cannot even connect with Web Browser using this IP address
I appreciate if u help me

Thanks in advance

(I am using 2WAN and 1 LAN) with PCC load balancing)

That means something (maybe firewall filter rule, maybe you changed the winbox port, maybe a nat setting, etc) in your router is blocking it. By default, it works.