Why Is My TP-Link Smart Bulb Not Connecting? | Reasons and solutions

Smart home technology has rapidly evolved, and many companies have joined the race to provide affordable yet reliable products for homeowners. TP-Link, known for its networking devices, has made its mark in the smart home scene with its Kasa brand of devices. Among the Kasa products, the tp-Link smart bulb is one of the most popular and affordable options available. However, like any other technology, tp-Link Smart Bulb may experience connectivity issues, and sometimes, they may not link to the app or Wi-Fi network. In this article, we’ll explore the common reasons why your tp-Link smart bulb may not connect and provide troubleshooting tips to help you fix the issue.

Why Is My TP-Link Smart Bulb Not Connecting

What Could Be The Reasons Behind My T-Link Smart Bulb Not Connecting?

One of the primary reasons why your tp-Link smart bulb is not connecting is that it only supports a 2.4 GHz Wi-Fi network. So, ensure that your router is set to 2.4 GHz and not 5 GHz when pairing your light bulb. It is also essential to disable any VPN on your mobile device and make sure it is connected to the same Wi-Fi network as the light bulb.

But, there may be other reasons or a combination of issues causing your tp-Link smart bulb not to connect to your Wi-Fi network. Here are some basic factors you should check when you are facing this issue:

  1. An overcrowded Wi-Fi network cannot handle your tp-Link smart bulb connection. Also, sometimes incorrectly typed Wi-Fi password causes this problem.
  2. Make sure to connect to the 2.4 GHz frequency band and turn off the 5 GHz band while connecting your tp-Link smart bulb, then switch the 5 GHz band back on.
  3. Ensure that the bulb is within the Wi-Fi range and located near the router during setup.
  4. Verify that your mobile phone is connected to the same network as the bulb and that Bluetooth is activated. If you have a VPN enabled, disable it.
  5. Disable any Ad blocker installed on the device.
  6. Make sure that the light bulb is in the process of being paired when connecting it to the app. Typically, during the pairing mode, the bulb will either continuously flash or blink three times, depending on the brand.
  7. Before connecting your tp-Link smart bulb to the network, reset it to clear up any software issues that could be causing connectivity problems.

Also you should turn off all your devices including the smart bulb, Wi-Fi router, and phone. To power cycle your router, unplug it from the outlet, wait for about a minute to discharge, and plug it back in. This is a basic precaution for any Wi-Fi-related issue. 

Troubleshooting of the TP-Link Smart Bulb not Connecting Issue

To troubleshoot and fix the issue of a smart bulb not connecting to your home network, it is important to identify the source of the problem. One of the first things to do is

1. Check Your Router’s Wi-Fi Settings. 

Smart light bulbs are only compatible with the 2.4 GHz frequency band, so it’s crucial to ensure that your router is set up to broadcast on this band.

If your router has both 2.4 GHz and 5 GHz bands on a single SSID, turn off the 5 GHz option on your router’s admin panel before connecting your smart bulb to the 2.4 GHz network. Once the bulb is connected, you can turn back on the 5 GHz option to enjoy high speeds.

To access your router’s admin panel, find the default IP address and password located at the bottom of your router. Enter the IP address on a connected device and log in with the default username and password to change your settings.

It’s also important to ensure that the network security encryption is set to WPA or WPA2 and the Authorization type to AES, as the newer WPA3 may not work with some smart home devices. Additionally, check the MAC address filtering setting, as it could prevent device authorization and cause connection failures.

To implement the changes you have made on the router’s portal, restart the router by disconnecting it from the power outlet for about 20 to 30 seconds and then reconnecting it. Wait for a minute for the router to power up and initialize your Wi-Fi network. Verify that your Wi-Fi is working properly, and then try to add a Smart bulb through the appropriate app.

2. Turn off the VPN

If you’re having trouble connecting your Smart Life bulb to your Wi-Fi network, it’s possible that an active VPN on your mobile device could be causing the issue. To fix this, simply turn off your VPN and restart your device to refresh your network connection. This should allow your device to discover new devices connecting to the router, including your Smart Life bulb.

It’s also worth noting that an ad blocker or Ad Guard on your device can have the same effect as a VPN, so be sure to temporarily turn these off as well when trying to connect your Smart Life bulb.

3. Keep your TP-link Smart Bulb Close to Your Router

To improve the signal strength and successfully connect your smart bulb to the network, it’s recommended to keep the bulb a few feet closer to the Wi-Fi router. This way, the bulb can be within the Wi-Fi signal range and receive a strong network signal during the setup process.

If the bulb is too far away, it may receive a weak signal, and the app may not be able to locate and initialize it properly. Hence, try bringing the smart bulb closer to the router and attempt to reconnect it.

4. Consider Upgrading to a Mesh Topology Network

If you experience weak network areas in your house, you can consider upgrading to a mesh topology network or getting a Wi-Fi extender. These options can help spread the network signal evenly and address connectivity issues for your smart devices.

Assure a Stable Network

Having a stable and strong internet connection is crucial for smart devices to function correctly. So, to prevent disconnection issues, make sure your home network is optimized and performing well.


If you’re having trouble connecting your tp-Link smart bulb light bulb to your network, there are several steps you can take to troubleshoot the issue. Start by checking your Wi-Fi connection, resetting your tp-Link smart bulb light bulb, and making sure your tp-Link smart bulb app and phone are up to date. If those steps don’t work, try disabling your phone’s mobile data, restarting your phone, or contacting customer support. With a little patience and persistence, you should be able to get your tp-Link smart bulb light bulb connected in no time.

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