Make sure layer 2 encapsulation is disabled in the access point. If you have a VLan for Wifi, make sure that the inter-VLan routing is enabled.
If you built a special VLan for Wifi, then make sure your internal network access rules allow the traffic between the two. They are in the firewall area of the router.
If you haven’t done anything with VLANS, then just make sure that all of the IPs in the network have the same subnet mask and default gateways configured.
You also need to make sure that any firewalls on the servers and the clients are configured to allow the connections you are trying to make. If all that fails, try plugging in a laptop via a wire and see if you can get to the servers.
Good luck. Networking can be complex - the more detail you provide, the better help you will receive.