DD-WRT is a type of router firmware that helps routers to produce a stronger Wi-Fi signal and better manage busy wireless networks.
A router's firmware is the inbuilt software that comes with the device. All routers come with some form of firmware pre-installed, with most major manufacturers using their own custom firmware for their products. DD-WRT differs from standard router firmware in that it is compatible with routers from different manufacturers.
To run DD-WRT, a user must first establish whether or not their router is compatible with the DD-WRT firmware. If their router is compatible, they must then wipe their router's existing firmware and then install DD-WRT via a process known as ?flashing?. This process can take some time and often requires a degree of technical expertise.
As such, many users choose to purchase routers that have been pre-flashed with DD-WRT rather than attempting to install the firmware themselves. This gives these users the benefits of DD-WRT without having to worry about any setup process. It also removes the risk that a user will wipe their router's existing firmware only to discover that their router is not, in fact, DD-WRT compatible.
Once installed, DD-WRT allows routers to perform a range of tasks that many not have been possible or efficient when using standard firmware. For example, DD-WRT supports Quality of Service, a networking technology that allows users to prioritise network traffic to certain programs. DD-WRT also gives users fine control over the broadcast power used by their router's wireless aerial.