“I AM CURRENTLY USING AN XFINITY ROUTER, WIRELESS GATEWAY MAC. I ALSO USE NETGEAR EX6100 EXTENDERS FOR A 4 STORY TOWNHOUSE. THE ROUTER IS ON THE 3RD FL ,THE EXTENDERS ON THE 1ST AND 4TH FLRS. IS THE NIGHTHAWK AC 1900 COMPATIBLE WITH THE NETGEAR EX6100?”