have you checked the WIFI whether it is enabled or not? on the TP-LINK page, Enable Wireless Router Radio and Enable SSID Broadcast should be checked, otherwise the wireless won't work.

By not talking to each other, do you mean you cannot access internet when the computer is connected to the 901?

I heard it was more reliable to check the hardware verison by looking at the label down to the bottom of the router. if it is V7, I believe the latest firmware version is 120201. It seems it will...

As far as I'm concerned, TD-8616 is a bridge modem and you need to set up the PPPoE connection on the computer, in that case, you will have a Public IP address. Since the modem is a bridge one, there...

the TL-WPA281 will be able to send out the WIFI signal, and it needs to be used with TL-PA211 together. you may also consider to buy a range extender to extend the WIFI:o

you may configure access control on the router to block the target which is YouTube.