Troubleshooting VPN Client on Wi-Fi Router Is Not Working
This Article Applies to:
All the Wi-Fi Routers that support VPN Client, such as Archer AX20, Archer AX21, Archer AX90, etc.
Issue Description/Phenomenon:
The Wi-Fi Routers that are being discussed here are the models that support VPN Client, which allows users to connect to a VPN server without the need to install VPN software on each device. If you are unable to connect to a VPN server when trying to configure the VPN client on the TP-Link router, this article provides some suggestions that may help you out.
However, if VPN server on TP-Link router is not working, please follow this thread for troubleshooting: VPN Server Doesn't Work Properly on TP-Link Wi-Fi Routers
Troubleshooting Suggestions & Solution:
Step 1
For OpenVPN, please follow this FAQ How to get configuration files from OpenVPN service providers to get correct configuration file and your VPN service credentials, which is the key to accessing the VPN service.
Step 2
Ensure you can successfully connect to the VPN server using a third-party VPN client software like OpenVPN Connect or OpenVPN or WireGuard App for WireGuard VPN on the local PC/Smartphone. This can ensure the .opvn or .conf file is configured and exported correctly.
For example, If you are trying to connect to NordVPN, please don't use NordVPN App since it doesn't require the .opvn at all.
Note: NordVPN service credentials are different from your NordVPN account credentials, namely your email address and your password. You'll need NordVPN service credentials to connect to the VPN using the manual OpenVPN configuration method in the router.
Step 3
If step 2 is confirmed good, but it still fails to connect to the VPN server when uploading the .opvn file into the TP-Link router, be sure the router's firmware is up-to-date. You can check for the updates on the Tether app or on the router web GUI, or you can download it from the local official website and then install it manually.
Step 4
If it still fails, please check the size of the VPN configuration profile you are trying to upload to the router, and how large that file is. You may download and install the Notepad+ application to delete the useless comment in the profile if that is too large, then try uploading it into the router again.
Step 5
It's also suggested to try TCP protocol on the VPN server if it's currently using UDP, then save the file and upload it into the TP-Link router again to check if that works.
If the VPN connection still fails, please comment below on this topic and be sure to provide the following information:
1. Model number, hardware, and firmware version of your TP-Link Router.
2. What kind of VPN server you are connecting to?
3. What kind of VPN type are you choosing on the TP-Link router, OpenVPN, or PPTP VPN?
4. What kind of VPN Client software you were using on the local PC or phone when it was connecting fine? Please test and make sure you can connect to the server with third-party software, such as OpenVPN Connect for OpenVPN and WireGuard App for WireGuard VPN.
5. Which step did you stuck in, any error message or screenshot?
6. Troubleshooting you've done before, and be sure the .opvn file for OpenVPN or .conf file for WireGuard is included when emailing to support.
Related Articles:
If you are not familiar with the VPN, visit Introduction and Configuration Guide of VPN Function on TP-Link Wireless Routers
If you want to check which model supports the VPN Client, visit Routers supporting the VPN Client.
If you are unable to connect CyberGhost OpenVPN Server, please try Manually create the unified format for OpenVPN profile(CyberGhost OpenVPN Server)
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Nick_1978 wrote
@Sunshine thanks
I do not have Open VPN Connect software (maybe I should ?)
I have Nord VPN subscription, I have a TP Link AX55 router, followed the instructions from both TP Link (and Nord VPN) . I used the OpenVPN type from the Dropdown menu, entered my NordVPN pass and username (altthough it states optional)....
Uploaded the ovpn fron Nord VPN
Let me know if that makes sense
Hi, please install OpenVPN Connect on your client device to test if the same username and password along with the .ovpn file works or not, which is quite important.
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@Sunshine thanks
I do not have Open VPN Connect software (maybe I should ?)
I have Nord VPN subscription, I have a TP Link AX55 router, followed the instructions from both TP Link (and Nord VPN) . I used the OpenVPN type from the Dropdown menu, entered my NordVPN pass and username (altthough it states optional)....
Uploaded the ovpn fron Nord VPN
Let me know if that makes sense
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Hi, if you use OpenVPN Connect software on your client device directly and use the same username and password along with the same .ovpn file, does it connect the NordVPN successfully?
Please note that the username and password you should use on the router or OpenVPN Connect software is different from that used on NordVPN App, the NordVPN App requires your account ID and password which is different from your username and password.
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I am trying to connect the Archer AX55 with Nord VPN, the firmware is up to date, upload of the ovpn file went well (its a 3kb file), but the status of the VPN in the TP Link webpage settings is all the time in Connecting and never gets connected
I triple checked the password, username, does not work
Any ideas
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Hi, to assist you efficiently, I've forwarded your case to the TP-Link support engineers who will contact you with your registered email address later. Please pay attention to your email box for follow-up.
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Hello,
My brother has a AX1500 Wi-Fi 6 Router and he configured the VPN Server with PPTP
I can access his VPN Server from Windows PC and from Android tablet without any problem
I have a AX1800 Wi-Fi 6 Router and I configured the Client VPN to acces my brother's VPN and I added 2 devices to use the VPN connection

When I enable VPN access for Dani-PC, I can't access webpages anymore from my PC.
If I try to ping by names, I cannot resolve the IP address
If I know the IP address the ping respond fine.
I suspect this is a DNS issue but I don't know how to solve it.
I added to my Network Adapter IPv4 Internet Protocol alternate DNS 10.0.0.10 and 8.8.8.8
I also added 192.168.1.1 as DNS but none of this attempts solve the issue.
When I enable VPN Access to a device, that device cannot access the internet anymore. When I disable VPN Access, everything works fine.
The firmware is up to date

Can you assist me please?
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tp-link support helped me. CyberGhost's OpenVPN didn't work. Removing "ncp-disable" line from the config file helped.
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Cozz wrote
Hi All,
Tried setting up NordVPN on my Archer AX55Pro and the speeds were terrible; 5mps down and up. Cancelled that and went to Surfshark and the speeds were about the same.
On on a 100/40 FTTP plan and the speeds are fairly well as advertised and are with an acceptable slowdown when using the the inbuilt MacOS VPN client. I'm guessing that there is something wrong with the router VPN client? Has anyone else had such a massive slow down when using a router client?
I've checked and there no current firmware update for this router.
@Cozz Thank you for asking in the community.
I tried to explain this earlier to others in the community, the speed of the VPN Client on the router cannot be as fast as that when connecting to the VPN server on a computer directly. Apparently, the router's CPU can't handle the VPN encryption as fast as a computer with the app does. When you create an encrypted tunnel between the router and the VPN provider, that will add overhead to the processor/resources of the router, which would cause a drop in performance which also means a drop in WAN to Internet throughput.
You may compare the speed of the VPN Client on some other home wireless routers if that is possible, you might get similar results.
BTW, there will be a speed improvement when using WireGuard VPN, and Archer AX55 Pro is planned to support WireGuard VPN in the near future. You may keep an eye on the router web GUI or the Tether app to check for the updates, and we will also update the below thread once it supports WireGuard VPN:
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Donna1234 wrote
Hi,
I bought AX20 router and when I entered my account online I dont have VPN Client option in menu only VPN Server. Can you please confirm why isnt it listed? Is there any other way that I can connect to NordVPN?
I have found this link https://www.tp-link.com/pl/support/faq/3135/ but as mentioned above the option is not listed.
Hi @Donna1234 Thank you for reaching out to us and welcome to the TP-Link community.
Archer AX20 does support VPN Client. Please make sure you have upgraded the router firmware to the latest version, which is 1.1.2 Build 20221016, and you will get the VPN Client setting menu on the router web GUI.
You may refer to this guide to upgrade and install the latest firmware on your router.
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Hi,
I bought AX20 router and when I entered my account online I dont have VPN Client option in menu only VPN Server. Can you please confirm why isnt it listed? Is there any other way that I can connect to NordVPN?
I have found this link https://www.tp-link.com/pl/support/faq/3135/ but as mentioned above the option is not listed.
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