Best answer: You can technically have hundreds of different devices connected wirelessly to a single Wi-Fi router at one time, plus a specific number of wired Ethernet connections based on the router model. However, just because you technically can doesn't mean you'll want to. To best handle a high number of connections, stick to a router with band steering like the NETGEAR R7000P Nighthawk, or a mesh router like the Ubiquiti AmpliFi HD.Strong performance: NETGEAR R7000P Nighthawk ($170 at Amazon)Mesh networking: Ubiquiti AmpliFi HD (From $120 at Amazon)