A router is the device that connects your home network to the internet. It receives the connection from your provider and distributes it to PCs, smartphones, TVs, and consoles via cable or WiFi.
It also manages basic security, internal IP assignment (DHCP), firewall, and traffic priorities. This is why the most important settings are managed from 192.168.1.1.
Guides to finding your IP address Modem and router configuration
A simple explanation of public, private, static, and dynamic IP addresses in 3 minutes.
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