Follow these steps
1
Connect the modem or internet cable to the router WAN/Internet port.
2
Connect a computer by Ethernet or join the router’s default Wi-Fi.
3
Sign in to the router using the address and credentials printed on its label.
4
Change the router administrator password and set a strong Wi-Fi password.
5
Use WPA2/WPA3 security, set a clear network name and update router firmware if available.
6
Test internet access, then connect devices one at a time.