Today, we at SFC, along with our OpenWrt member project, announce the production release of the OpenWrt One. This is the first wireless Internet router designed and built with your software freedom and right to repair in mind. The OpenWrt One will never be locked down and is forever unbrickable. This device services your needs as its owner and user. Everyone deserves control of their computing. The OpenWrt One takes a great first step toward bringing software rights to your home: you can control your own network with the software of your choice, and ensure your right to change, modify, and repair it as you like.
The Linksys WRT3200ACM has A/B firmware support, but unfortunately that router is starting to get a little outdated. Saved me from a couple bad upgrades, but unfortunately it died on me about 4 months ago. I updated to the Banana Pi BPI-R3, which has been great for my network speed, but was a lot more complicated to set up.