GL.iNet Flint 2 (GL-MT6000) Review: The VPN Router I Recommend to Everyone Who Asks

Disclosure: This review contains an affiliate link. If you buy through it I earn a small commission at no extra cost to you. I purchased this unit independently and all test results are my own.

Why I Bought This Router

I'd been running a mid-range ASUS router for two years and it was fine. Nothing wrong with it exactly — good WiFi coverage, stable, no crashes. But I'd been wanting to run a proper VPN server at home so I could access my NAS remotely over an encrypted connection without paying for a commercial VPN, and the ASUS VPN server setup through its firmware was clunky and limited. A colleague who runs his own homelab mentioned the GL.iNet Flint 2 almost offhandedly: "It runs OpenWrt, has WireGuard built in, and the WiFi is genuinely good." I looked it up. The spec sheet was compelling. The 2,738 Amazon reviews averaging 4.5 stars meant enough people had tested it in real homes to know it wasn't a paper-spec device. I ordered one.

That was several months ago. I've since recommended it to four people. Here's the detailed version of why.

Hardware: Build and Physical Design

The Flint 2 is bigger than I expected from the photos — it's a substantial, flat router with four large external antennas. The matte black finish looks serious without being aggressively "gaming" in the RGB-everything sense that some routers overdo. No lights flashing at you from across the room. The ventilation slots run along the bottom and sides; after running it 24/7 for months I put my hand near the vents and it's warm but not concerning — this thing doesn't run hot.

The port configuration on the back: one 2.5G WAN (internet input), one 2.5G LAN, four 1G LAN ports, one USB 3.0 port, and one USB-C power port. The 2.5G WAN means if your ISP delivers faster-than-1G fiber, you won't bottleneck at the router's WAN port — an increasingly relevant spec as multi-gig fiber rolls out. The single 2.5G LAN is useful for connecting a 2.5G NAS or gaming PC directly. I'm running a 1G fiber plan currently, so the 2.5G WAN isn't limiting me yet, but I bought this router knowing my ISP plans to offer 2.5G speeds next year.

Setup: Honest Account of the First Hour

I'm going to be honest here because I think some reviews undersell the setup complexity. Plugging in the Flint 2 and getting WiFi working took about five minutes — no different from any other router. But I bought this specifically for the VPN server capability, and that part took longer.

GL.iNet's admin interface is accessed through a browser at 192.168.8.1. The interface is clean and organized, but it has a lot of sections: VPN, network, system, applications, more. If you've configured a home router before, the layout will make sense. If you haven't, the number of options will feel overwhelming.

Setting up WireGuard as a server — meaning creating a VPN that my phone connects to when I'm outside the house — took about 15 minutes following GL.iNet's documentation. Creating the WireGuard server, downloading the client config, scanning the QR code on my phone, testing the connection from my phone's mobile data. It worked first try. I was surprised — VPN server setup on other routers I've tried has almost always required troubleshooting.

Connecting the Flint 2 as a WireGuard client (routing all home traffic through a commercial VPN service) took about 8 minutes. I downloaded my VPN provider's WireGuard config file, uploaded it to the GL.iNet interface, and it connected immediately.

Speed Tests: The Numbers That Matter

Tested on a 1 Gbps symmetric fiber plan with DCSpeedTest. Each result is the median of 12 tests across different days and times. WiFi tests on a MacBook Pro with WiFi 6 support.

The WireGuard numbers are the headline. 810 Mbps with the full home network routing through a VPN is — I want to be precise here — faster than my ISP plan delivers. The VPN is not the bottleneck. My internet plan is the bottleneck, which is exactly how it should work. The router's MediaTek MT7986A chipset has hardware-level cryptographic acceleration that makes this throughput possible at a price point where software-only VPN routers struggle to hit 100 Mbps.

The 5GHz WiFi numbers are strong at close range and still useful at 60 feet through two walls. 289 Mbps in that far bedroom is plenty for everything I do there: 4K streaming, video calls, file downloads. The 2.4GHz band at 108 Mbps is slower but long-range and wall-penetrating — it's what my smart home devices and IoT sensors connect to.

Gaming: Does QoS Actually Work?

I play competitively a few nights a week and was curious whether the QoS (Quality of Service) configuration made a measurable difference. Short answer: yes, when the network is under load. When my partner is doing a large file download and a video call simultaneously, and I'm gaming wired on the same network, QoS keeps my gaming ping from spiking. Without QoS enabled in the same scenario, I'd see ping spikes to 80–120ms during heavy transfer periods. With QoS prioritizing gaming traffic, ping stayed at 9–14ms throughout.

Setting up QoS on the Flint 2 is more involved than on consumer routers that handle it automatically. You define rules specifying which traffic types or MAC addresses get priority. It took me about 20 minutes to configure correctly the first time. Once configured, it's set-and-forget.

Features I Use Every Day vs Features I Set Up Once

Use every day: WireGuard client running on the router routing all traffic through my VPN provider — I never think about it, it just runs. Guest network for visitors (separated from my main network). DNS over HTTPS for encrypted DNS resolution.

Set up once, occasionally useful: WireGuard server for connecting to my home network when traveling — I access my NAS remotely a few times a month. Parental controls filtering by category on my kids' devices — configured once, running in background.

Set up once, rarely use: Tor hidden service support. I enabled it to see if it worked (it did) but the speed penalty for Tor makes it impractical for anything but very specific privacy use cases. Access Point mode — useful if you ever want to use your existing router as the gateway and the Flint 2 as just a WiFi access point.

Haven't touched: OpenWrt's full admin interface (accessible by SSH or through the router's advanced admin mode). The GL.iNet interface covers everything I need. The OpenWrt layer is there for people who want to run custom packages, but I haven't needed it.

One Honest Criticism

The Flint 2 is not the right router for someone who wants to set it up in five minutes and never look at it again. If you hand this to someone who's never configured a router beyond clicking "next" in an app-based wizard, they will be confused by the interface depth. The TP-Link AX73 is genuinely more beginner-friendly, and if VPN and 2.5G ports aren't features you need, the simpler interface might be worth the tradeoff.

Also: the Flint 2 is a single router, not a mesh system. It covers my apartment (about 1,600 sq ft) with strong signal everywhere, but for homes over 2,500 sq ft with multiple floors, you'd either need to run a second unit as an access point via ethernet cable or consider a dedicated mesh system. I'd point you to my Orbi RBK752 review for the mesh comparison.

Who Should Buy This

The GL.iNet Flint 2 is the right purchase if: you want VPN running at the router level covering every device without per-device configuration; you're on a fast internet plan (500 Mbps or above) and want a WAN port that won't bottleneck when multi-gig arrives; you game and want real QoS configuration; you want full control over your network with an open firmware base; or you simply want the best-performing single WiFi 6 router under $200 and don't need a mesh system.

Where to Buy

Final Verdict

I've tested a lot of networking gear over the past four years. The GL.iNet Flint 2 is the best single-router recommendation I can make under $200. Not because it's the most beginner-friendly — it isn't — but because the things it does exceptionally well (WireGuard VPN throughput, WiFi 6 range at AX6000, 2.5G ports, open firmware) are genuinely valuable and not available from competitors at this price point. If you're the kind of person who reads router reviews to this level of detail, this is almost certainly the right router for you.

Frequently Asked Questions

Does the GL.iNet Flint 2 support all major VPN services?

Yes. It supports WireGuard and OpenVPN as client protocols, which covers virtually every major VPN service (Mullvad, NordVPN, ExpressVPN, ProtonVPN, Surfshark, and others). Most services now provide WireGuard config files that you upload directly to the GL.iNet interface.

Can I run multiple VPN profiles and switch between them?

Yes. The GL.iNet interface supports multiple VPN configurations and you can switch between them or enable/disable VPN entirely from the admin dashboard. You can also set specific devices to bypass the VPN (useful if you have one device that needs an unfiltered connection).

Is the Flint 2 compatible with Tailscale?

Yes — Tailscale can be installed as a package on the Flint 2 through the Applications section of the interface. This gives you Tailscale's mesh VPN functionality running at the router level, allowing all connected devices to join your Tailscale network automatically. This is particularly useful for accessing home devices remotely without port forwarding.

How loud is the Flint 2? Does it have a fan?

The Flint 2 is passively cooled — no fan. It is completely silent. The chassis runs warm after extended use but within normal operating temperatures. I've had mine running continuously for months without any thermal issues.

Will the GL-MT6000 work with my ISP's modem?

Yes. You connect the Flint 2's WAN port to your ISP's modem/gateway output. If your ISP provides a combination modem-router, put it into bridge mode (or DMZ mode) so the Flint 2 handles all routing. Any ISP equipment is compatible.