Support

Help with LocalLAN, the network scanner for Mac, and its free companion, Throughput.

Please include your macOS version, which app you're writing about and its version (LocalLAN › About LocalLAN, or Throughput's version in the App Store), and what you were doing when the problem happened. A screenshot helps — but it may show the names of devices on your network, so send one only if you're comfortable.

The Wi-Fi Networks screen is empty

macOS only lets apps list nearby Wi-Fi networks when they have Location permission. Open System Settings › Privacy & Security › Location Services and turn LocalLAN on. LocalLAN uses this solely to list networks; it never reads or stores your location.

For the first few seconds of a Wi-Fi scan the list can be empty while macOS gathers results. Give it a moment before assuming something is wrong.

Devices are missing, or have no manufacturer

Check System Settings › Privacy & Security › Local Network and make sure LocalLAN is allowed. Without it, the app can't reach devices on your network.
Some devices answer nothing at all — cameras, sleeping phones, and anything behind a strict firewall. LocalLAN reports what it can establish and says when it couldn't establish something, rather than guessing.
A manufacturer shown as a dash means the device's hardware address isn't in the public registry, or the device uses a private (randomised) address, as iPhones and many laptops do by default.

Switch Ports, Sites or SNMP show nothing

These LocalLAN Pro features need managed network equipment: a switch that answers SNMP, or a network divided into several subnets. On a single home network with an ordinary router they'll show an explanation of what's needed rather than data. That's expected — and it's why the Pro upgrade isn't useful for a single flat network.

Restoring LocalLAN Pro

Pro is a one-time purchase tied to your Apple ID. On a new Mac, or after reinstalling, open any Pro screen and choose Restore Purchases, signed in to the App Store with the same Apple ID you bought it with. There's no subscription and nothing to renew.

Refunds

Purchases are handled by Apple, so refunds are requested through Apple at reportaproblem.apple.com.

Requirements

macOS 14.4 or later.

Privacy

LocalLAN collects nothing about you. Details are in the privacy policy.

Throughput

Throughput is a free, always-on-top window that shows how saturated each network interface is. Click it to flip between the compact gauges and the detail view. Drag it to move it. The chevron button in its corner (or a right-click) opens the options: display style, how saturation is measured, which interfaces to show, launch at login, and Quit.

The gauges barely move, even during a big download

By default, saturation is measured against the link's speed. For Wi-Fi that's the radio's current transmit rate, which real-world traffic rarely gets close to. Choose Measure Saturation Against › Recent Peak in the options to scale the gauges to your actual traffic instead.

An interface I expected is missing

Throughput shows interfaces that are up and have a routable address, which is usually the Wi-Fi or Ethernet you're using and any connected VPN. Choose Show All Interfaces in the options to list everything. A VPN shows "Link speed unknown" because tunnels don't report one; its gauges scale to recent peak traffic.

How do I quit it?

Throughput has no Dock icon. Open the options from the chevron button in its corner and choose Quit Throughput.

Throughput requires macOS 15 or later and collects nothing. See its privacy policy.