Have trouble with Linksys port forwarding not working? Old or buggy firmware can often be the culprit. Firmware updates contain bug fixes, security patches, and performance enhancements including the improvement of functionality in port forwarding. Updating the firmware on your Linksys router should always be one of the first things to do when having trouble port forwarding if you can't connect your game or cannot get remote access. Refer to the Linksys support website for the latest firmware version suitable for your router model then download and apply to update your device's software according to instructions.