Who is your ISP? is the DSL light on? When you go to the quick setup , it will ask for PPP username , password , WAN connection type those info, have you got those info from ISP Need to make sure all...

This router is not affected, no need firmware update http://forum.tp-link.com/showthread.php?101094-Security-Flaws-Severe-flaws-called-quot-KRACK-quot-are-discovered-in-the-WPA2-protocol

My Archer C9 works perfectly since I purchased it, I am very happy with the router too:o

Share this FAQ with you: http://www.tp-link.com/en/faq-938.html

have no ideal.not use static , just DHCP, will it get IPv6 address ?

Have no ideal...:confused: You can contact tp-link support for help, they would be very happy to help you out