i have Mikrotik RouterOS 3.22 on my server.
i used Transparent Proxy Server & Dhcp Server For my lan users.
but when i connect my Access Point "Nano Station 2" on same switch of LAN for wireless users
Same users can get auto ip and same cannot. All users are within 500m distance and line of site is also very clear.

please guide me for perfect wireless settings so that wireless users can use net without any problem.

Break this down into the most simple configuration: dhcp server only, without firewall... everything else default.

Plug in your access point and see if everyone gets dhcp... post your simplified config if it still does not work.

This will help you determine where the problem could be.