Smart plugs, hubs and appliances · TP-Link

Kasa smart plug Wi-Fi: 2.4 GHz setup and offline fixes

Kasa smart plugs connect to a home Wi-Fi network through the Kasa app. TP-Link’s setup guide uses the HS110 as an example; screens and features differ by model.

Wi-Fi
2.4 GHz Wi-Fi; the Kasa plug in TP-Link’s setup guide does not use 5 GHz.
Security
Use the security supported by your specific plug and router; check its manual.
Setup network
TP-LINK_Smart Plug_XXXX in the documented iOS setup flow.
App
Kasa app
Models
HS100, HS110

Checked 2 November 2026. TP-Link Kasa setup and troubleshooting guidance for the HS110 example, checked November 2026.

Wi-Fi it needs

TP-Link’s Kasa smart plug setup guide requires a 2.4 GHz network and says the plug does not support 5 GHz. Connect the phone to the 2.4 GHz network before setup.

Some routers use one network name for both bands. If setup fails, TP-Link’s troubleshooting guide discusses temporarily disabling 5 GHz or separating the bands. Router controls vary, so consult its instructions and restore any temporary change afterwards.

The plug’s compatibility with a particular security mode depends on its model and firmware. Check the model’s official manual before changing your router’s security.

Set it up

TP-Link uses an HS110 as its example. Its current setup guide requires the Kasa app and a TP-Link account.

  1. Connect your phone to the home 2.4 GHz Wi-Fi network.

  2. Plug the smart plug into a power outlet.

  3. Open Kasa and sign in to your TP-Link account.

  4. Tap + › Device › Smart Plugs and choose your model.

  5. Follow the app’s instructions to connect the plug to the home network.

The plug’s temporary network

On iOS, TP-Link’s example asks you to open the phone’s Wi-Fi settings and join TP-LINK_Smart Plug_XXXX, then return to Kasa. A no-internet warning on this temporary network is expected.

On iOS 14 and later, enable Local Network access for Kasa as TP-Link directs. Android and other model setup steps can differ; follow the app.

How much data it uses

Do not confuse an energy-monitoring plug’s measurement of electrical power with a measurement of internet data. Check the model’s own features and documentation.

TP-Link’s setup guide does not publish a typical internet data-use figure for the plug. Its consumption depends on its model and how it is used.

Guest, hotel and dorm Wi-Fi

Setup needs your phone to discover and communicate with the plug. Guest networks that isolate clients can interfere with local discovery, even if both devices have internet access.

A hotel or dorm network may require a web sign-in, restrict devices or prevent you changing network settings. Ask its administrator whether a smart plug can be connected.

The temporary setup network is made by the plug; it is not the home network and normally has no internet access. Return to the app to complete setup.

When it won’t connect

If setup stops, TP-Link’s guide recommends checking the phone, network and device before changing more advanced settings.

  1. Confirm the phone is on the 2.4 GHz home Wi-Fi network.

  2. Check the network name and password for typing mistakes.

  3. Allow Kasa local network access if your phone asks.

  4. Move the plug closer to the router for setup.

  5. Follow TP-Link’s model-specific reset and setup instructions if needed.

Resetting can remove the plug’s configuration. Use the instructions for the exact model.

When it keeps going offline

When a previously connected plug appears offline, check power and the home network before repeating setup.

  1. Make sure the outlet has power and the plug is switched on.

  2. Check that another device can use the home internet connection.

  3. Move the plug closer to the router to test signal coverage.

  4. Restart network equipment you manage when it is convenient for other users.

  5. Follow the Kasa app and TP-Link support for your exact model if it remains offline.

Questions

Can the Kasa plug in TP-Link’s guide join 5 GHz Wi-Fi?

No. TP-Link says the plug in its setup guide requires 2.4 GHz. Check the specifications of your particular model.

Why does the plug’s Wi-Fi say it has no internet?

TP-Link says this is expected during the documented iOS setup. Return to Kasa to connect the plug to your home network.

Sources

Checked on 2 November 2026.

See your network from your Mac

Kilobat is a Mac menu-bar app with a CLI and an MCP server for AI agents. It lists the devices on your Wi-Fi and says when a new one joins, keeps a history of the router’s and the internet’s health, scans nearby channels, and shows which app on your Mac is using the network. Read the docs.

Download for Mac ↓
brew install seifip/kilobat/kilobat