I bought an Asus RT-AC68U router to replace a Netgear router. All of my TiVos worked on the Netgear router. With the Asus, every device I own, wired or wireless, work fine except for my 5 TiVos. 4 are wired, 1 is wireless. The 3 Premiers pass the DNS and port tests. All of the TiVos fail the network test connection and fail to connect to the TiVo service, Netflix, etc. All of them see each other and the TiVo server and can stream and transfer OK. They just can't get to the outside (internet). The router has no blocked ports, URLs, IPs, or anything that I can see. TiVo support blames the router and that seems logical up to a point. But obviously TiVo is doing something that no ther device does. I have desktop and laptop computers, my Andriod phone, several tablets, a Sonos system, 2 RoKus, an XBox, a Sirius radio, and probably other stuff I can think of. Every one of them work perfectly whether wired or wireless. Only the TiVos do not work. Does anyone have a idea of what the problem may be?