IP Address Conflict: Causes and Fixes
An IP conflict is usually a local address assigned twice. Learn how to reconnect safely, check DHCP settings, and stop the same device collision returning.
Blog category
Wi-Fi & Home Networking
This category covers the equipment between your devices and the internet: logging in to your router and opening ports for games, cameras or servers. Start with how to log into your router, then read what port forwarding is before exposing any service. Before forwarding a port, update the router firmware, change the default admin password, and forward only the port the device documents. If your router shows a WAN address in 100.64.0.0/10 or a private range, the provider is translating your traffic again, and inbound connections will not reach you until that is solved.
Use the lookup on this site to compare your public IP with the WAN address your router shows; if they differ, CGNAT may be why inbound connections fail.
Practical guides to logging into your router, port forwarding, and the NAT and CGNAT limits that decide whether devices on your home network can be reached.
My IP Address and Port: What You Can Actually See
Your public IP identifies the network seen by websites; a port identifies a service for a particular connection. Learn what you can check and why.
NAT Firewall Explained: What It Does and Doesn't Do
A NAT firewall helps keep unsolicited inbound connections from reaching your home devices, but it is not a full security filter. Learn how it works and how to troubleshoot CGNAT and port forwarding.
Free Dynamic DNS Service: How to Choose and Set Up
A DDNS name follows your changing public IP, but it cannot bypass CGNAT or open ports. Learn how to choose a provider, configure updates, and troubleshoot access.
What Is Port Forwarding? A Clear Home Router Guide
Port forwarding lets an outside connection reach one chosen service at home. See when it helps, how to set it up, and how to diagnose a rule that fails.
My WAN IP Address: Find It and Check What It Means
See your public IP in seconds, then compare it with your router’s WAN address to understand NAT, double routers, VPNs, and what the result means.
IP Addresses on My Network: Find Every Device
Use your router for the fullest device list, then verify addresses on individual devices. Learn what DHCP, stale entries, and local scans can—and cannot—tell you.
How to Log Into My Router: Find the Right Address
Find your router’s current gateway, open its local admin page, and sign in safely. Device-specific steps and fixes help when the page or password does not work.