I'm using Tp Link WR845N as my main router. In that router have only 1 wan port so can i turn a lan port into wan?
So do you want to make another wan port? Give output of /etc/config/network
Yes... Cz in my modem has only one output.
You have one wan, why do you want to make another? Give output of /etc/config/network
I wanted to setup another router and to get same speed.
Sorry, I don't understand. You have 5 ports (1wan+4lan by default) on router, how do you want to configure it?