PSA Anyone with commodity routers, repeaters, etc. please check out LEDE project https://lede-project.org . Check if your device has support here - https://lede-project.org/toh/start LEDE firmware is amazing. You will be able to do a lot more with your router and they have quick security fixes. The recent krack vulnerability was fixed within 2 days after the announcement.
There's also a third router, an old TP-Link 1043ND running as a wireless bridge to connect devices in my AV setup, once again running LEDE.