Region : Argentina

Model : TL-R470T+

Hardware Version : V1

Firmware Version :

ISP :

Hi all i need some help

i have 2 usernames for my 2 wan external ip i`m using one PPPoe username for wan1 and 1 PPPoe username for wan2, i have 2 servers that give me 2 LAN IPS from router 192.168.0.100 for server 1 and 192.168.0.101 for server 2 i want to open port 80, 21, 53 ( webserver, FTP and Dns ) for each server how i can make this router work with those 2 external ip to open port 80 ... when i try to Forward for server 1 ports 80, 21,53 for lan ip 192.168.0.100 it works and opens ports for that lan ip for server 1 but when i try to forward for server 2 same ports for lan ip 192.168.0.101 i have this error

[CODE]The entry has already existed or its port is contained by another one. Please check it and input another one. [/CODE]