PoE, Comcast Modems, and Service Outages

Aaron C. de Bruyn aaron at heyaaron.com
Tue Mar 29 20:24:40 UTC 2022

On Tue, Mar 29, 2022 at 12:20 PM Brie <bruns at 2mbit.com> wrote:

> Unifi/EdgeSwitch?

Yeah.  Unfortunately.  USW-24-250.

> Yeah, you know when 24v passive POE is turned on because it kills the
> port on the other end that aren't designed to handle it.  Your router
> would likely have a dead eth port on it.

I've never tested it with one of my routers, but a tech did accidentally
test it on a UniFi AP.  I'm still not sure how he ignored the warning about
sending 24 volts down the line, but the WAP didn't like it and decided to
refuse to work with anyone ever again. ;)

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