TP-Link AC1750 Troubleshooting [Proper Guide With Solutions]

Is your TP-Link AC1750 giving you a hard time? Are you tired of the daily problems with your router? Worry not, as we’ve got you covered. This article will guide you through the solution to all the significant issues with the TP-Link AC1750 and also help you prevent them in the future. Read on to know more and make your life easier.

TP-Link AC1750 is the perfect wireless router for people looking for a reliable, high-speed, and affordable wireless router. This wireless router delivers a fast and reliable internet connection to all your devices. With the TP-Link AC1750, you can connect up to 20 devices simultaneously without losing speed or reliability. The router’s new antenna design supports MIMO technology, delivering speeds up to 300 Mbps over the 2.4Ghz band and 433 Mbps over the more excellent 5Ghz wireless bar. 

With the increase in usage of the AC1750, many users have reported that the router has stopped working. There is no one-liner to describe what caused the problem, as there can be multiple reasons. It could be a problem with the ISP, a situation within the router, or simply a poor setup that caused the router to stop working. Before we move on to fixing the problem, make sure you’ve set up the router using one of the following ways:

  • Using the Tether App
  • Using WPS Button
  • Using a PC or Phone


The following are the best solutions to this problem. Apply the methods in the order they’re mentioned; Do not apply the following procedure if the previous one solves your issue:

Check The Signal Strength

The most common reason for this issue is that your range extender isn’t getting solid signals. Place the range extender near your wifi router to solve this issue.

Check Connection With ISP

Another common issue is that your router needs to get an internet connection or a prolonged connection from the ISP. To check this, use an ethernet cable to connect your router to a PC and check the internet connection. 

Reboot Often Solves The Issue

A reboot might do if the above methods don’t solve the issue. Plug out the TP-Link wifi Extender from the wall outlet and wait for five to ten minutes. Plug it back in and check if the problem is solved. If not, move on to the following method.

Update The Firmware Version On Your wifi Extender

Your Wifi extender might be running on an outdated firmware version. This can also cause multiple problems if not updated. Follow these steps to update your TP-Link AC1750’s firmware version:

  • Go to TP-Link support and download the latest firmware version.
  • Open tplinkrepeater on the device you’ve downloaded the firmware on.
  • Go to Settings > System Tools > Firmware Upgrade.
  • Click on Browse and search for the file you just downloaded.
  • Select the file and click on Upgrade to install the latest firmware version.

Another common problem is the TP-Link AC1750 5Ghz home router not working. Although there can be several reasons for this, we will discuss the most common issues and their solutions. Before moving to the actual part, ensure that your software is up-to-date. To do this, restart the router, and updates will be installed automatically if any. Also, ensure that the router has yet to reach its breaking point, where only replacing the router can solve your problems.

Problems & Solutions

Below we have discussed some solutions for TP-Link AC1750 not working.

Incorrect Password

Although overlooked most of the time, this is the most common problem. You may enter the wrong password during setup, later thinking there’s a problem with the router. 

Go to the router’s network settings area through your mobile or PC and try reconnecting with the correct password.

Poor Signal Strength

Another problem is the wifi extender needing more signals to forward or interference between the wifi router and extender. This can be solved by reducing the distance between the two devices or removing any possible obstacle causing interference. 

Overflow Of Traffic

You may not be able to connect to the internet if several devices access the same frequency. To solve this issue, you need access to the backend admin panel. You can change the channels from auto to manual and select a channel with lesser traffic.

The Device Requires A Firmware Update

If none of those mentioned earlier methods works, check for new firmware updates. Although you will get notified when a new update arrives, you can check for yourself in case you don’t get notified. Install the update and try connecting. Your problem should be solved this time.

The most frustrating and confusing problem most users face is that the TP-Link AC1750 Extender always finds the 2.4Ghz channel but fails to find the 5Ghz band. Such problems indicate that there are software issues.


The simplest solution to this problem is to reinstall the firmware of your TP-Link AC1750. Once reinstalled, reboot the device and check if the issue is resolved.

You can often connect to the internet through wifi but need help connecting using an Ethernet or LAN cable. This is frustrating, especially for PlayStation users who need a good internet connection. There can be multiple causes for this, and we have discussed their solutions below. Before you get to these solutions, ensure the following:

  • For Windows: On the Network Connection Details Page, the DHCP Enabled should be checked as Yes.
  • For MAC: Go to Network > Advanced, and ensure that Configure IPv4 is Using DHCP. 


  • Check if the ethernet light on the router is lit up. If not, try a different ethernet cable or LAN port.
  • Connect a different device to the router using the same cable. If this device connects successfully, the problem is with your device.

There can be multiple situations that will require the router to be reset. You can create a backup file of your settings and load it on setup or do the setup from scratch. In many cases, the reset button does not work. But there is another method to do the factory reset, and we’ve dissed it below:


  • In a web browser, navigate to the configuration page of your TP-Link router. Ensure that your computer is on the same network as the router.
  • There are three tabs at the top of the page. Choose “Advanced Settings.”
  • Select “System Tools” from the menu you see on the left side.
  • Select “Backup & Restore” from the options that appear.
  • To reset the router, click “Restore Factory Settings.” The router will be reset.

Many customers report no lights turning on in their TP-Link AC1750 5Ghz router. This can be due to multiple reasons, and there are various things you can do to resolve this issue. 


One of the following should solve your issue:

  • Check if the LED control function is enabled.
  • Change to another outlet and plug it in.
  • Do a hard reset.
  • Make sure that it is the original power adapter.
  • Replace with another power adapter

Since the DHCP runs in a home network, it has about 50 to 100 addresses. When the number of internet-enabled devices connected to the router reaches a limit, the DHCP runs out of lessons. 


To resolve this, you need to perform two steps:

Step: 1

  • Power Off your PC 
  • Turn off the router and unplug the power.
  • Wait for 10 seconds and plug the power back in. 
  • Wait for 5 min to let the router fully start.
  • Start your device and see if the problem is solved.

This step will resolve the issue, however, follow the second step to ensure that you don’t face the problem again.

Step: 2

  • Navigate to the IP Address of your router from the browser.
  • Under LAN/Network tab, look for the DHCP settings.
  • Set the DHCP Range from 192.168.x.10 to 192.168.x.253 (let x remain as it is)
  • Save the settings and reconnect to the network. 

This step will increase the range of your DHCP, and you will be able to connect more devices to the network.

There have been cases where people get an “unable to resolve DNS server” problem after a few months of using the router. This happens because you have yet to choose automatic IP integration from your service provider via DHCP. To resolve this issue, follow the steps discussed below:


Connect your router with a PC through an ethernet cable and follow the following steps.

  • Open your web browser and enter in the URL field. This will take you to your router’s login page.
  • If your ISP has provided you with an ID and password, enter them to access the router’s settings. 
  • Otherwise, Enter “admin” in the username field, leave the password field blank, and press enters to gain access to your router’s main settings.
  • On the main settings page, navigate to DHCP/WAN settings. 
  • You will see a box for DHCP settings in the DHCP/WAN settings tab; select YES.

This will provide your TP-Link router with an automatic IP address from your ISP, eliminating the need to change it every few months.

First, make sure your internet connection is working correctly. Sometimes the connection is unstable and fluctuates, causing the problem, and rebooting the router usually solves the problem.

Also, ensure that there are no other electronic devices in the vicinity of the router that could cause interference, and keep it in an open area. If the problem is not solved, one of the below-mention tricks should solve it:


  • Ensure a proper physical connection between the router and the modem.
  • To test the connection, connect your computer directly to your modem.
  • Clone your computer’s MAC address.
  • Change the router’s LAN IP address.
  • Reboot the modem and router.


The TP-Link AC1750 router is one of the most popular routers today. However, like any other machine, it also runs into problems. This article discussed the most critical and commonly occurring issues with the TP-Link C20 Archer AC1750 wireless router, possible solutions, and prevention methods for the issues in discussion. After reading the article, you will be free of worries regarding your TP-Link AC1750 router and will perform your daily tasks more efficiently and effectively.

David Peter
Hi, this is David Peter from California, USA. By profession, I am working as an Telecommunication engineer with a reputable Telecommunications Company here in California. I am a tech savvy person, and that is why I love my job. This blog is my part time hobby, and I love to write reviews about different products based on my own knowledge and experience. When you go through my reviews, you will feel that they are unbiased reviews as they come direct from my heart for tech lovers. The purpose is to help and guide people who are looking to buy or upgrade their electronic gadgets like modems and routers etc. Enjoy and give your feedback in comments!
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