Troubble with a IP Address

Hi,
i can`t enter on my router when i try to login when i use IP ADDRESS configured on a VLAN

Example:

Vlan 101
ip address: 172.18.0.1

try to connect to 172.18.0.1 via Winbox and the cannection not work, but with the MAC address i can,

can you help me?

Did you specify a subnet mask?
If not, the address is a /32 and can’t communicate anywhere.
So it should look like

/ip address add address=172.18.0.1/24 interface=vlan101

I guess your config looks like

/ip address add address=172.18.0.1 interface=vlan101

and won’t work.
-Chris