@Pugiwi 

I would first start with a DMZ just to see if the router is blocking the traffic or the computer may still be blocking the communication.

Log into the A6, and go to the DMZ section, enter the IP of the Minecraft server and enable this. This is obviously not secure, but only a test to see if that opens the ports. Soon after enabling the DMZ, test the ports you wanted open to see if it now works. If not, then the server or computer may be blocking communication or the settings need to be double-checked. Make sure to disable the DMZ server when you are done. 

The ideal setup is the do the port forwarding like you were trying to do, but the DMZ test is to see if the router is blocking the traffic.

@Tony 

Do I need a static ip or will a dynamic one work? Do I need to downgrade any firmware? Does my modem have anything to do with the reason it is not working?

@Pugiwi 

Assign a static IP to the server outside the DHCP scope of the router.

No need to touch the firmware of the TP-Link router.

If your modem is also a router it can block outside connection.

@Tony 

Ok so my modem is a combo but the router part should be turned off but would it still block things?

I got it figured out. Turns out I had to tinker with my modem and the ports are now open. Thank you for all your help.

@Pugiwi i dont know if you are still active, but could you please describe how did you do it?