Most D-Link routers will have DD-WRT support - meaning GPL code is released to the public and 3rd party firmware can be used on D-Link routers, but since this is a 3rd party firmware,
D-Link tech support will NOT support it or help you with it. Forum users are welcome to help each other.
For support, go to
https://www.dd-wrt.com/site/supportVisit
https://www.dd-wrt.com/site/support/router-database and search for "D-link" to get a list of compatible routers.
