Here’s How to Fix TP-Link AC750 WiFi Extender Not Connecting to the Internet Problem
Now that we have some understanding of the problem, it’s time to look at the best solutions to get rid of the problem. Without further ado, let’s move on to the first solution.
Solution 1: Check if Your Device Is Linked to the Extender’s Network
You need to make sure that your device is connected to your TP-Link WiFi Extender’s network. You can see the connected WiFi network name by going to WiFi options under the Settings app. If the device is connected to some other network, disconnect the connection and connect to the extender’s network.
Solution 2: Check Passwords
While setting up the WiFi extender, it is required to enter the host network password. Some people often get confused here. What they do is they enter the password for the extender or the password for the broadband account. Here, you need to enter the password of the host network (the main router’s password).
You can go to the extender’s settings and verify the password. Change it if it is different from the host network password.
You should also carefully enter the password required to connect to the extender’s network. Some people often miss the letter case and symbols.
Solution 3: Reboot the Router
There may be a minor issue which is preventing the internet access from the extender. Usually, these can be easily fixed by rebooting the router. We are talking about rebooting the main router, not the extender.
To reboot the router, go to the router’s settings page, find the reboot option and tap on it. An easy method to reboot the router is removing the power supply for at least 2 minutes and then plug the power cable back into the wall socket.
Connect your phone to the host network (router) and check if you are able to access the internet. Now, disconnect the WiFi connection and connect to the TP-Link WiFi Extender’s network, and check the internet connection.
Solution 4: Update Router and Extender’s Firmware
If your router or the extender is running on an old or outdated firmware version, you should update it as soon as possible. Open the router’s settings page and locate the firmware update option. Tap on it and wait until the process completes.
Here’s how to update TP-Link WiFi Extender:
- Download the latest version of tplinkrepeater-net Extender firmware on your device.
- Connect the device to the TP-Link extender’s network.
- Open the control page of TP-Link WiFi Extender. You can do this by going to www.tplinkrepeater.net in any browser.
- Go to System Tools > Backup & Restore and take a backup of the current settings.
- Now, go to System Tools > tplink Extender Firmware Upgrade.
- Tap on the Browse option and select the firmware file. Please note that you’ve to select the firmware file with (.bin) extension. To get this extract the firmware file you downloaded using tools like WinRAR or WinZIP.
- Once the upgrade process is finished, click Upgrade and let the device reboot itself.
Solution 5: Select 2.4GHz Band on the Router
An affected user found a simple trick to fix the no internet issue on the TP-Link AC750 WiFi Extender. What he did was, he opted for the 2.4GHz band for the router. He says, switching to 5GHz causes the problem, and selecting the 2.4GHz offers the internet connection. You can also try this method and check if it can spell out success for you.
For the range extender to work, you have to properly configure the DHCP Server settings. Look at the image below and set the DHCP Server settings accordingly.

- Press and hold the RESET button until all the LEDs flash once.
- Disable Mac filtering/Access Control/Band Steering functions on the main router.
- If the App or Web says ‘No Host Network Connection‘, check if router 5Ghz Wi-Fi is on the DFS channel. change the Router 5G channel to Band 1 channels (36, 40, 44, 48).
- Setup the TP-Link AC750 WiFi Extender again.
Final Thoughts
In this guide, we briefly discussed the no internet connection problem on TP-Link AC750 WiFi Extender that many users are dealing with. Here, we also mentioned some effective solutions to quickly eliminate the issue. I hope this guide was helpful to you. Were you able to fix the problem? Share your thoughts or suggestions (if any) in the comment section below.