After a lot of testing i managed to make it behave like kind of access point.. When cable(from the main router) is connected to LAN/WAN port it behaves like a router no matter what, if i set it up...

I just bought TL-MR6400 to expand my network and have the ability for 4G internet backup connection.I dont know if i am doing sth wrong but i cant make it to work as an access point, works fine as...