Find your router’s web page
Here are instructions on how to find your router’s IP address. Once you have the IP address (e.g., 184.108.40.206) type it into an address bar (aka URL bar).
Change the Admin/Default password
Most companies program the same default username and password into every device they sell. Be sure to change the admin password to a unique, strong password and if your device allows it, change the admin username as well.
Create a Network Password
Create a strong, unique password for your Wi-Fi network too (and make sure it’s different from your router admin password). This way only people and devices you trust can join your home network. Consider using a password manager to create a strong password and to keep track of all of your passwords.
Keep the Firmware Updated
Turn on automatic updates for your router’s firmware. If automatic updating is not an option, you should set a reminder to log in occasionally to check your router for updates. And… if your router is no longer supported by the manufacturer, buy a new one!
Set up a Guest Network
Setting up a “guest” network means that you create a separate virtual network for your guests and any questionable devices, like guests' devices, or even for smart home devices that you want to isolate. Splitting the network means that devices on your guest network cannot see or talk with any device on your main network where your trusted devices connect to (e.g., your computers, smartphones, or tablets).