To begin linksys velop setup, connect one node to your modem via Ethernet and power it on. Install the Linksys app on your mobile device and follow the prompts to add nodes and create a network name and password. Place additional nodes throughout your home, following the app's guidance for optimal placement. Once all nodes are connected, the app will confirm setup completion. Enjoy seamless Wi-Fi coverage with your newly configured Linksys Velop system.