I'm not sure if they can work together. You should tell some info about your ISP or requirements for internet connection...or contact your ISP to confirm if they can work together as you know that...

Upgrade the latest firmware. http://www.tp-link.com/en/download/TL-WR941ND_V5.html#Firmware private IP range:10.0.0.0—10.255.255.255 ； 172.16.0.0—172.31.255.255 ； 192.168.0.0—192.168.255.255 How...

If you just power off the router and power it back on, do Wi-Fi name and password go back to factory defaults? Except Wi-Fi settings, have to done any other settings? Can you connect power adapter to...

It can be solved if we create a static route rule on the router. Have a look at this thread....

WAN IP on web interface of WR941ND is a public one? Verify hardware version of your router. Is it V6 indeed? Try to contact PS3's support and ask for some advice. As I know, NAT Type 2 should work...

You may try to install the adapter on a different computer to see if the problem continues. If it does, get a replacement under warranty.