If Linksys port forwarding not working, access to devices or services on your network may be blocked. The most common causes are incorrect IP address configuration, firewall restrictions, or outdated firmware. Troubleshooting steps might include checking port forwarding rules, restarting the router, or updating the firmware. Making sure that a valid internal IP address is assigned can help resolve the issue. Properly configuring firewall settings and enabling port forwarding features allows for smooth connections and access to external devices.