You bought a product for China Mainland... Where did you buy it? There is no English firmware for it. This is not the right place for you to ask for help. You should contact fae@tp-link.com.cn for...

1. You didn't answer what I said. I cannot figure out what's wrong. 2. Under network---WAN, WAN ports is 1, 2 or 3? 3. Ensure that you can access internet when PC is connected to any of your ADSL...

Sorin, choose Keywords instead of URL path as Mode.

No idea. Can you confirm with local resellers who may know or have tested Samsung ML-2160 printer? Besides, I think there is a way to configure it under Ubuntu 14.04 but you must know how to install...

Maybe TP-LINK has a beta firmware or some other methods for you to try. http://ticket.tp-link.com/index.php?/Tickets/Submit

It has limitaion indeed. About 1000 for W8970 V1 as I know. Some others may support up to 3000.