Port forwarding is a feature on the Linksys router that allows the data to pass through the firewall for internet connections. This option will allow you to implement rules on your router to know that one port is open to receive specific requested data. Although you can use this useful feature easily after enabling it from the web interface. However, if there is an error like Linksys port forwarding not working, there might be some issues with it. To resolve that, check the list of port-forwarded applications and their IP addresses as well. Make sure there are no IP address conflicts and every device has a different IP address.