Hi,

I've signed up with Comcast down in Corvallis where they're the only game
in town.

For now I'm renting their combo cable modem/wifi router. I'd rather spend
the $15/month on my own hardware, and I trust OpenWrt over their software.

It seems you can't get cable modems whose firmware can be replaced.
Something about how a glitch in the cable protocols could take down a
neighborhood. :-) So I figure I'll get a dumb cable<-->ethernet box, plug
it in and forget it.

That leaves me choosing between one or two devices for the router and
access point parts. In the past I've used separate boxes, with OpenWRT on a
wired-only router and a cheap access point in its DMZ. I'd like to find a
single box that does both, but the ones "recommended" (inevitably with
"click to check price on Amazon" links) by industry sites are usually more
expensive than two boxes would be. There's cheaper dual-purpose hardware
that ought to suffice, but there are gotchas I don't understand, e.g.
whatever causes my Raspberry Pi 4 running as an access point to be 1/10 the
speed of the cable modem/access point it's plugged into.

Anybody care to recommend either an approach (one device vs two) or
specific hardware? This is for light home use mostly, BTW. I think our
cable maxes out around 450mbps.

Thanks,

--Eric
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