WiFi Setup

I assume you have OpenWRT on all your WiFi Access Points (see here) for the following configurations and suggestions. If you are not going the OpenWRT route, keep reading and try to adapt as much as possible to your devices.

You need to find a nice SSID, or name, for your WiFi network. You can also choose to keep your SSID hidden, but this actually doesn't really add any kind of security, so i will not consider the option.

You want one single SSID to cover your entire home, so choose one that you like and create it on all your OpenWRT devices, on all the bands you want.

You will need to go to WiFi settings and create a new SSID for each band you want to use, and use the same name for them all, on all routers.

You can, of course, create additional SSIDs, like for IoT devices or other use cases (guests access maybe) as you need, just remember to create them on all the OpenWRT devices and for all the bands that the SSID should cover.

2.4Ghz network is mandatory, not only because it offers the best coverage, but because some older devices (or IoT devices, or smart automation ones) might not support anything else.

In addition to the classic 2.4Ghz band you want to also create 5Ghz and/or 6Ghz (according to your OpenWRT devices support) band networks.

Remeber to create them all on all OpenWRT devices and all with the same SSID, this will be required for AP hanbdover below.

If you live in an isolated area, channel selection is not required. The APs should be able to negotiate the best one when set to automatic channel selection.

If you live in an are with many WiFI netoworks around your, or a lot of EM interference specially on the 2.4Ghz band, you can have a benefit by manually selecting the less crowded bands around you.

Unfortunately network scanners are expensive devices, but you might be able to find some apps for Android that can do the job. Again, unfortunately, since Android 10+, scanning for WiFi networks is heavily throttled so that might also prove imposible in the near future. YMMV.

For 5Ghz and 6Ghz bands, this is less of an issue because the signal propagation is greatly reduced compared to 2.4Ghz band, and less used overall.