RB450G unable to login via mac address using winbox

I recently upgrade my RB450G to v5.11 and also upgrade firmware to v 2.38, it works fine, but i could not enable to login via mac address using winbox just only using ip address.
What should i do ?

go to tool> Mac server to check it.
and then goto ip firewall to check as welll.

I’ve already check it
I set mac-server interface enable all and winbox interface enable all
I’ ve already delete all of ip firewall configuration, but it still unable to login mac address using winbox.
Please help me…???

Did you try a full default reset already?