I was running stock firmware for a couple of months but I needed the router to do more. I was reluctant to spend a lot of money on a high end router thus opted to install OpenWRT Chaos Calmer 15.05 into my TP-Link Archer C7 v2.
With OpenWRT, I now have:
With the above, it has more features than expensive routers costing three times more.
The trial and error was not entirely smooth though. I had to overcome several obstacles including entering Failsafe mode and glad that worked! In the coming days, I will be sharing a series of what and how I did.