Probably, Selenium would not be the correct solution.
1. Most router/wifi brands already have mobile apps to manage. You might want to check out the manufacturer's website
2. You might want to head to Github to find solutions, alternatively, you might want to check out Telnet or NetCat (if on mac)
The command line would assist you in playing with the router.
3. Also - if you are not "satisfied" with the UI/features - you might want to check dd-wrt and replace the firmware of your router.
Most of the solutions mentioned above require you to "typically" write code, however, a computer technical savviness would be required to play with
I hope you understand that this is Selenium forum.
We might both get kicked out - if we discuss this further :->