Detection is UPnP only. SNMP needs credentials, so it can never be zero-setup.

The details: help.peakhour.app/user-guide/settings/monitors-settings/

PeakHour 6 is on the Mac App Store: apps.apple.com/app/id156057...

The trap we designed around: usage tracking follows your Internet Gateway. Pick up a hotel router on the road and, without a guard, its traffic would count against your home quota.

A router you haven't adopted is never counted.

Mesh Wi-Fi: every node can advertise itself as a router, and you can't dismiss a detected row.

So PeakHour shows at most one detected router, and prefers the one your Mac actually uses as its gateway.

Idle links are tricky too. At 3am the traffic counters don't move, so "must show traffic" would mean PeakHour only finds routers while you're downloading.

So counters that move are proof on their own. Otherwise we wait for a second sighting.

The subnet check matters more than it sounds. Right after you change networks, discovery results can still hold the previous network's router.

Without the check, you'd see your home router while sitting in a hotel.

Choosing the right router is where the quiet mistakes live. A monitor graphing the wrong device looks perfectly plausible.

So PeakHour shows a router only if it's on your current subnet, reports traffic counters, and isn't one you already monitor.

Keeping one is a deliberate act: click Adopt.

"Detected vs adopted" explains the rest of the UI. A detected row is locked, has no delete button (there's nothing to delete) and is tinted so you can tell it apart.

Leave the network and it disappears. Come back and it returns with the same history.

That works because history is keyed to the router's own UPnP identity (its UDN), not to a settings entry.

So a detected router is never saved.

It's a live monitor that exists only while you're on that network. It graphs, it can become your Internet Gateway, it keeps history. But nothing is written to your settings.

Save every router you pass and your settings fill up with routers you'll never see again. Then you need rules to expire them, hide them, and sync them between Macs.

We didn't want any of that.

The obvious version: search the network with UPnP, find a router, add it as a monitor. Done.

Except a laptop joins a lot of networks. Home, the office, a café, a hotel, a friend's place.