FlashRouters is excited to announce that we now support VPN client connections on Wi-Fi 6/Wireless-AX routers! With Asus Merlin firmware, we can supercharge your current Asus router (including Asus Wi-Fi 6 routers) allowing you to fully customize hidden features not available on stock Asus firmware.

Quick Overview

Looking to grab full control of your VPN experience while using an Asus router? Let us Flash the sophisticated Asus Merlin firmware upgrade to your router! We’ve flashed thousands of routers so you don’t have to!

Best FlashRouters for Merlin

If you’re looking for the easiest way to set up your VPN, upgrading your wireless network router will help ensure a seamless streaming experience.

Asus RT-AX86U PRO Merlin FlashRouter Great for Large Homes / Perfect for 15+ Devices / Blazing-fast Wi-fi 6 (Wireless-AX) Speeds / Enhanced with Merlin Upgraded Firmware Maintains + Builds on MOST Premium Asus Router Standard Features SALE PRICE: $304.99 $424.99 | BUY NOW

Get Merlin on Your Existing Eligible Asus Router with FMR

Flash My Router – Asus Merlin Supports Many Popular Asus Wi-Fi 6 Routers / 3 VPN Profile Configurations / Access to Asus App Management / Asus Stock Firmware Capabilities PRICE: $100 | BUY NOW

What is Asus Merlin Firmware?

Off-the-shelf Asus routers come with the standard Asuswrt firmware. However, people are always looking to get more out of what they own. So, superusers created a new custom firmware, called Merlin. Rather than focus on huge changes over the stock firmware, Merlin simply has targeted tweaks and fixes to the default firmware to help people get the most out of their Asus router.

Asus Merlin Firmware upgrade for Asus wifi6 Routers

What Are The Best Features of Merlin Firmware & Merlin-Powered FlashRouters?

Merlin firmware is a popular option for users looking to get the most out of their routers. Let’s take a look at some of the most popular enhancements.

Merlin Is Easy-to-Use

We get it! You don’t want to get a router only to find that it’s super hard to use. With Merlin, that’s not a concern! Merlin complements the stock Asus firmware that comes with regular routers, so it builds upon the existing framework. That means users won’t need to learn a whole new router layout when they set up the router.

VPN Customization

While the stock Asuswrt firmware contains basic VPN capabilities, Merlin gives you total control over your VPN setup. With the VPN Director feature shown below, users can customize their VPN connection how they want.

Asuswrt Merlin FlashRouter Features - VPN Director Screenshot
Screenshot of the VPN Director feature in Merlin firmware. Image courtesy of Merlin.

The VPN Director Tool allows users to set up five VPN server locations, which can be used across multiple VPN providers. Once the VPN locations are set up, you can easily switch between locations with the tap of a button!

You can also set rules for specific devices, thanks to VPN policy routing by device. This feature allows you to pick and choose what devices you want to be tunneled through your VPN service (or choose between multiple services) and which devices you’d like to connect straight to your ISP.

Another popular feature is the VPN Killswitch, which will automatically cut your internet connection if your VPN connection drops, stopping DNS leaks.

Enhance Your Network Performance with Wi-Fi 6

Our Merlin FlashRouters support Wi-Fi 6. With Wi-Fi 6, your new devices can take advantage of the latest wireless technology enhancement, allowing for faster, more efficient communication between them and your Wi-Fi 6 router.

Even older devices that don’t support the newer enhancements will benefit from the Merlin Wi-Fi 6 experience. As your newer devices begin to communicate more efficiently, your Merlin router can allocate more bandwidth to processing requests from these routers, leading to a better all-around network experience.

No Warranty Voided

On top of all of this, using Merlin firmware on your Asus router will NOT void your warranty! You’ll still have the same coverage as if you were using the stock firmware.

Does Merlin Support Standard Asus Firmware Features?

In short, yes! Because Merlin builds upon the existing Asus firmware, users retain access to some of the most popular features that come with standard Asus firmware. Let’s explore some of these stock features.

Asus Simple Router Setup

Asus Merlin routers support Asus’s mobile setup. Simply plug in the router, set it up, and find your other devices in just a few minutes.

Asus Mobile App Management

Once you’ve set up your Merlin FlashRouter, you can manage it, as well as your other Merlin devices from the Asus router mobile application.


Have several other Asus routers? With AiMesh you can have your Merlin FlashRouter easily communicate with your existing router around your home (or office) network. As network devices communicate with each other, you’ll never have to think about dead spots as you move around.

With AiMesh, your routers talk to each other, so if you from one part of the house to another, your wireless routers will hand off your device traffic seamlessly. That means no more dead spots and no more dropped connections.

Merlin retains support for your favorite built-in Asus router features like AiMesh. See how it works
A demonstration of how AiMesh works on Asus routers. Image courtesy of Asus.


In addition to enhancing VPN, Merlin allows users to retain access to Asus’s AiProtection Intrusion Protection System. Powered by TrendMicro, this software scans incoming data for malware and other network threats, blocks malicious sites, and more. Users can also set up parental controls for individual devices.

View Which Devices Are Connected To your Network

Another one of Merlin’s built-in features is the system wireless log, featuring a real-time snapshot of which devices are connected to your network. You receive a detailed list of which devices are connected to each wireless band on your network. Learn when devices connected to your wireless network and more.

Asuswrt Merlin FlashRouter Features - System Wireless Log Screenshot
Screenshot of the System Wireless Log feature in Merlin firmware. Image courtesy of Merlin

How Can I Get Merlin on My Asus Wi-Fi 6 Router?

Merlin software can be flashed to your compatible Asus router by logging into the router and performing specific steps to reprogram the memory with the new program. If something goes wrong or steps are not followed exactly, you could accidentally brick your equipment, rendering it unusable. Luckily, FlashRouters has a few options to assist in getting the most out of your Asus FlashRouter.

At FlashRouters, we’ve successfully flashed thousands of routers. To get Merlin firmware onto your router, you can purchase a pre-flashed Merlin router with VPN pre-configured, or alternatively, if you own a compatible Merlin router, we can remotely connect to your network and flash your router with Merlin.

What Are The Best Merlin FlashRouters?

Ready to upgrade to the Wi-Fi 6 Merlin experience? Take a look at some of our most popular models!

Asus RT-AX86U PRO Merlin FlashRouter

Asus RT-AX86U Merlin FlashRouter
  • Great for Large Homes
  • Perfect for 15+ Devices

Asus RT-AX88U PRO Merlin FlashRouter

Introducing the Asus RT-AX88U FlashRouter - With Wi-Fi 6 + Merlin Customization
  • Perfect for Max Wi-Fi Coverage
  • Recommended for 15+ Devices

How FlashRouters Can Help Put Merlin On Your Asus Wi-Fi 6 Router—Flash My Router With Asus Merlin Software Today!

Our service can remotely flash your compatible Asus router with Merlin firmware and configure up to 3 different VPN profile connections! You can finally fully control your VPN setup over Wi-Fi 6 with our Merlin Flash My Router service! Trust the professionals. We Flash Routers.

flash my router Flash My Router - Asus-Merlin


  • Supports Many Popular Asus Wi-Fi 6 Routers
  • 3 VPN Profile Configurations
  • Access to Asus App Management
  • Asus Stock Firmware Capabilities

What Models Does Flash My Router Asuswrt-Merlin Support?

Have Questions

Check out our FAQs related to Merlin firmware and Merlin FlashRouters?

At the moment, we support the following Asus models for the Asus Flash My Router Plan.

If you have any questions about Asus Merlin Firmware, Asus Wi-Fi 6 Routers, or any other networking question, feel free to ask!