The TP-Link Archer AX21 is a dual-band WiFi 6 router that aims to bring next-generation wireless performance to homes at an affordable price point. As one of TP-Link’s entry-level WiFi 6 routers, the AX21 promises faster speeds, greater capacity, and improved range compared to previous WiFi 5 (802.11ac) routers.
In this review, we’ll take an in-depth look at the AX21’s features, performance, and overall value to help you decide if it’s the right router upgrade for your home network.
Quick Verdict – Overall rating: ⭐⭐⭐⭐☆ (4.5 out of 5 stars)
The TP-Link Archer AX21 delivers solid WiFi 6 performance and features at a budget-friendly price. It offers good speeds, a decent range, useful parental controls, and security features. While not the fastest or most feature-packed WiFi 6 router, it provides excellent value for small to medium-sized homes looking to upgrade to WiFi 6 without breaking the bank.
Pros and Cons
Pros:
- Affordable entry point for WiFi 6
- Good speeds and coverage for small to medium homes
- Easy setup and management through app
- Useful parental controls and security features
- Supports TP-Link OneMesh for expandable coverage
Cons:
- Not the fastest WiFi 6 performance
- Limited to 2×2 MU-MIMO streams
- No multi-gig ports
- Basic QoS options
TP-Link AX1800 WiFi 6 Router V4 (Archer AX21) – Dual Band Wireless Internet Router, Gigabit Router, Easy Mesh, Works with Alexa - A Certified for Humans Device
$74.77 in stock
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Unboxing – What’s Inside?
The TP-Link Archer AX21 comes in a compact box containing:
- Archer AX21 router
- Power adapter
- Ethernet cable
- Quick installation guide
- Technical support information
Specifications:
- WiFi Standard: 802.11ax (WiFi 6)
- Bands: Dual-band (2.4 GHz + 5 GHz)
- WiFi Speed: AX1800 (574 Mbps on 2.4 GHz + 1201 Mbps on 5 GHz)
- CPU: 1.5 GHz Triple-Core processor
- Memory: 256 MB RAM
- Antennas: 4 external high-gain antennas
- Ports: 1x Gigabit WAN port, 4x Gigabit LAN ports
- USB: None
- Dimensions: 10.2 x 5.3 x 1.5 inches
- Weight: 1.1 pounds
Documentation/User Guide
The included quick installation guide provides clear step-by-step instructions for setting up the router. More detailed documentation is available on TP-Link’s website, including the full user manual, FAQs, and firmware updates.
Features – What We Found
The TP-Link Archer AX21 packs in a solid set of features for its price range:
- WiFi 6 Technology: The headline feature is WiFi 6 support, which brings benefits like OFDMA, 1024-QAM, and Target Wake Time for improved speeds, capacity and efficiency.
- Dual-Band AX1800 Speeds: Theoretical combined speeds of up to 1800 Mbps (1201 Mbps on 5 GHz + 574 Mbps on 2.4 GHz).
- Beamforming: Focuses WiFi signals towards connected devices for stronger connections.
- MU-MIMO: Simultaneous data streaming to multiple devices, though limited to 2×2 streams.
- OFDMA: Improves network efficiency by allowing multiple clients to share a channel.
- TP-Link HomeCare: Built-in antivirus, parental controls, and QoS powered by Trend Micro (free basic tier).
- OneMesh Support: Can create a mesh network with compatible TP-Link extenders.
- Alexa Compatibility: Supports voice control through Alexa devices.
- Tether App: Easy setup and management through TP-Link’s mobile app.
- VPN Server: Supports OpenVPN and PPTP for remote access.
While not overflowing with advanced features, the AX21 covers the essentials for most home users. The inclusion of HomeCare security features and parental controls adds value, though some features require a subscription for full functionality.
Who Should Buy?
The TP-Link Archer AX21 is best suited for:
- Small to medium-sized homes (up to ~1,500 sq ft)
- Users upgrading from older WiFi 5 (802.11ac) or WiFi 4 (802.11n) routers
- Budget-conscious buyers wanting WiFi 6 benefits
- Families who need basic parental controls and security features
- Those with internet plans up to 500 Mbps
It may not be ideal for:
- Large homes needing extensive coverage
- Power users requiring multi-gig ports or advanced features
- Gamers needing ultra-low latency and advanced QoS
- Heavy streamers with gigabit internet plans
Performance
In real-world testing, the TP-Link Archer AX21 delivers solid performance for its class, though it won’t break any speed records compared to higher-end WiFi 6 routers.
Close-range speeds: At close range (about 5 feet), we saw average speeds of around 700-800 Mbps on the 5 GHz band and 200-250 Mbps on the 2.4 GHz band when testing with a WiFi 6 client. This is good performance for an entry-level WiFi 6 router, though higher-end models can push closer to gigabit speeds.
Mid-range speeds: At a distance of about 30 feet with one wall in between, speeds dropped to around 500-600 Mbps on 5 GHz and 150-180 Mbps on 2.4 GHz. This is still plenty fast for most online activities.
Long-range speeds: At the edge of its range (about 75 feet with multiple walls), we still maintained around 200-300 Mbps on 5 GHz and 50-80 Mbps on 2.4 GHz. While not blazing fast, it’s usable for most tasks.
Coverage: In our testing, the AX21 provided good coverage for a small to medium-sized home up to about 1,500 square feet. Larger homes may need to consider a mesh system or adding an extender.
Capacity: Thanks to OFDMA and MU-MIMO, the router handled multiple devices well. We were able to stream 4K video on two devices while gaming and browsing on others without noticeable slowdowns.
Overall, while not class-leading, the AX21’s performance is a noticeable upgrade over most WiFi 5 routers and should satisfy the needs of most small to medium households.
Setup and Management
Setting up the Archer AX21 is straightforward, especially using TP-Link’s Tether mobile app. The app walks you through the process step-by-step, from connecting the router to customizing your network settings. The whole process can be completed in about 10 minutes.
For those who prefer a web interface, the router can also be configured through a browser. The web UI is clean and intuitive, making it easy to adjust settings and monitor your network.
Key management features include:
- Guest network creation
- Parental controls with content filtering and time limits
- QoS for prioritizing devices or applications
- VPN server setup
- Port forwarding and DMZ
- LED control
- Firmware updates
The Tether app provides easy access to most common settings, while the web interface offers more advanced configuration options. Overall, both novice and experienced users should find the AX21 easy to manage.
Security Features
The Archer AX21 includes TP-Link’s HomeCare security suite, which offers some nice protective features:
- Trend Micro-powered antivirus
- Malicious content filtering
- Intrusion prevention system
- Infected device quarantine
While the basic HomeCare features are free, some advanced functions require a subscription. Even the free tier provides good baseline protection for most users.
Additional security features include:
- WPA3 encryption support
- Guest network isolation
- Access control lists
- VPN server functionality
These security options help keep your home network protected against common threats and unauthorized access.
Parental Controls
The AX21’s parental controls are quite comprehensive for a router in this price range. Key features include:
- Content filtering by category
- Time limits and schedules for internet access
- Bedtime mode
- Usage reports
- Ability to pause the internet
These tools give parents good control over their children’s online activities and screen time. While not as advanced as some dedicated parental control software, they should suffice for most families.
Concluding Thoughts
The TP-Link Archer AX21 strikes a good balance between performance, features, and affordability. It delivers on the core promises of WiFi 6 – faster speeds, better capacity, and improved efficiency – without the premium price tag of higher-end models.
For small to medium homes looking to upgrade to WiFi 6, the AX21 offers a compelling package. Its performance is a clear step up from WiFi 5 routers, and while it may not match the speeds of more expensive WiFi 6 models, it should satisfy the needs of most households.
The inclusion of TP-Link’s HomeCare security features and parental controls adds significant value, providing protection and peace of mind for families. The easy setup process and intuitive management tools also make it accessible for less tech-savvy users.
There are some limitations to consider. The lack of a USB port may disappoint those looking to set up network storage, and power users might find the QoS and customization options somewhat basic. Additionally, very large homes or those with gigabit internet plans may want to look at more powerful options.
However, for its target market – small to medium homes wanting to embrace WiFi 6 without breaking the bank – the Archer AX21 hits the mark. It offers a notable upgrade over previous-generation routers at a price point that makes WiFi 6 accessible to more users.
In conclusion, the TP-Link Archer AX21 earns a solid recommendation for anyone seeking an affordable entry point into the world of WiFi 6. It delivers good performance, useful features, and reliability at a price that represents excellent value for money.
Frequently Asked Questions
- Does the Archer AX21 support WiFi 6E?
No, the AX21 supports standard WiFi 6 (802.11ax) but not WiFi 6E, which uses the 6 GHz band. - Can I use this router with any internet service provider?
Yes, the Archer AX21 is compatible with all major internet service providers, including cable, fiber, and DSL. - Does this router have a USB port for network storage?
No, the AX21 does not have a USB port. You’ll need to look at higher-end models for this feature. - What’s the difference between the AX21 and the AX20?
The AX21 is a slightly updated version of the AX20, with minor improvements in firmware and performance. They have very similar core specifications. - Can I use this router to create a mesh network?
Yes, the AX21 supports TP-Link’s OneMesh technology. You can pair it with compatible TP-Link extenders to create a mesh network. - Is the HomeCare security feature free?
Basic HomeCare features are free, but some advanced functions require a subscription. - Does this router support WPA3 encryption?
Yes, the Archer AX21 supports the latest WPA3 encryption standard for enhanced security. - Can I control this router with Alexa?
Yes, the AX21 is compatible with Alexa for basic voice control functions. - What’s the warranty on this router?
TP-Link offers a 2-year warranty on the Archer AX21. - Can I wall-mount this router?
Yes, the AX21 has built-in mounting holes for wall installation.
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