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FIX: VPN not working with Asus router (5 tested solutions)

If you have another anti-malware installed besides Windows Defender, then it might be blocking your VPN application.

In this case, all you have to do is add your VPN service to the whitelist of your antivirus solution to ensure that it won’t get blocked again.


If you’re looking for a VPN solution to secure your online privacy and protect your home network from eavesdroppers, we suggest opting for a premium VPN service like Private Internet Access.

You can install PIA on Windows, Mac, Linux, Android, iOS, and even Asus routers. If your Asus firmware supports OpenVPN, you can use PIA in manual configuration mode to install the VPN at the router level.

Plus, PIA has an exclusive DNS resolver that fixes any DNS-related. It also comes with a kill switch and a built-in malware blocker for web browsers.

More about PIA:

  • Supports OpenVPN and WireGuard
  • No identifying logs
  • 10 simultaneous device connections
  • 24/7 live chat support
  • 30-day money-back guarantee (no free trial)
Private Internet Access

Private Internet Access

Use this premium VPN to install OpenVPN directly on your Asus router and avoid connectivity issues.

enable Asus NAT Passthrough
  1. Using a web browser, access your Asus router panel at
  2. Log in with your credentials (default is admin for username and password)
  3. Go to Advanced Settings > WAN > NAT Passthrough
  4. Depending on which VPN protocol you use, enable PPTP Passthrough, L2TP Passthrough, or IPsec Passthrough
  5. Click Apply

Your VPN connection will not work on your Asus router unless you enable NAT Passthrough, depending on which VPN protocol you use to establish the connection (PPTP, L2TP, and IPsec only).

But you shouldn’t enable passthrough for all protocols if you won’t use them. It will only expose your home network to security risks, making it one of the few risks of using a VPN on a router.


To sum up, if your VPN connection gets blocked by your router, whether it’s Asus or something else, then you can update your router firmware to the newest edition and make an exception for your VPN service in the firewall.

You can also check if your anti-malware solution is blocking VPN traffic, as well as enable VPN passthrough at the router level.

But we also recommend using a reliable VPN service like Private Internet Access (buy here) because it’s less likely to cause VPN connectivity issues.

FAQ: Learn more about Asus routers and VPN

  • Does Asus router support VPN?

Yes, Asus is one of the best brands as far as VPN routers are concerned. It has ASUSWRT as the default firmware, which supports VPN server connections in PPTP, L2TP, and IPsec. But you can replace it with Asuswrt-Merlin third-party firmware, which supports VPN client mode.

  • How do I use NordVPN on my Asus router?

Your Asus router firmware must support VPN client mode if you want to use NordVPN or any other premium VPN service. Asuswrt-Merlin is a good example. You simply enter your NordVPN login credentials and server information in the VPN section of your router’s admin panel.

  • Do Asus routers update automatically?

No, Asus routers don’t update automatically. You have to allow firmware updates manually after accessing the router admin panel.

This post was written by Elena Constantinescu and was first posted to WindowsReport

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