TP-Link
The TP‑Link Archer AX21 is a budget‑friendly dual‑band Wi‑Fi 6 router delivering up to 1.8 Gbps combined speed, four high‑gain antennas, and a suite of security and mesh features, aimed at small‑to‑medium homes.
Pros
Current
$52.20
Average
$67.14
Lowest
$44.99
Highest
$89.99
Lower = better sales rank
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Cons
From Expert Reviews
Praised by Experts
Criticized by Experts
From User Reviews
Users Love
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Expert Opinion
Professional reviewers commend the Archer AX21 for delivering solid Wi‑Fi 6 performance at a very competitive price, highlighting its four antennas, OFDMA, and security suite. However, they note the dual‑core CPU and single‑band‑per‑device limitation as drawbacks, and point out the absence of advanced QoS, USB 3.0, and full‑speed Ethernet as gaps compared with pricier models.
What Users Say
Everyday users appreciate the quick Tether app setup, stable 4K streaming, and the speed boost over older routers, especially in apartments and small homes. Common complaints revolve around weaker 2.4 GHz coverage in larger spaces, occasional firmware freezes, and the lack of tri‑band or faster wired ports for heavy device loads.
Common Complaints
Reduced 2.4 GHz range in bigger spaces, firmware glitches that cause freezes, processor bottlenecks under heavy traffic, lack of USB 3.0 and multi‑gig ports, and performance drops when many IoT devices are connected.
What People Are Saying
“smooth for home office and smart TVs”
“fine for apartments, but lags with 30+ IoT devices”
How It Compares
vs. TP‑Link Archer AX20
Advantages
Disadvantages
Choose AX21 for better antenna coverage and OneMesh; choose AX20 if you need larger flash storage.
vs. Netgear R6700AX
Advantages
Disadvantages
Pick AX21 for budget‑focused buyers; pick R6700AX for users who want extra security and app features.
vs. Asus RT‑AX55
Advantages
Disadvantages
Select AX21 for cost‑effective mesh setups; select RT‑AX55 for higher processing power and larger device counts.
