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Tenda AC21 router review

300 + 1733 Mbps
IEEE 802.11a/b/g/n/ac
Realtek RTL8197FH @ 1 GHz
64 MB / 8 MB

Tenda introduced the AC21 router in 2020. It is powered by Realtek RTL8197FH @ 1 GHz chipset, 64 MB of RAM, and 8 MB of flash memory.

Want to know if this Tenda router stands out? Keep following along!

Table of Contents

  • Tenda AC21 specifications
    • Body, dimensions, weight
    • System, chipset, RAM, flash, power supply
    • Network, protocols, WAN and LAN ports
    • Wireless, antennas, speed, security
    • Connectivity
    • Administration, user interface, login information
  • Verdict, Pros and Cons
  • Photos
  • Comparisons

Our personal experiences and opinions form the basis of this article. We aimed to share insights on a topic, and we hoped others would find it useful and inspirational. The specs below rely on official manufacturer data, but we also consider user reviews. If you noticed any mistakes or missing details about the Tenda AC21, please let us know. Furthermore, we strive to deliver a thorough and precise overview.

Tenda AC21 / AC21

The AC21 supports dual-band Wi-Fi, offering both 2.4 GHz and 5 GHz bands. Tenda has actively developed innovative networking solutions.

Tenda AC21 specifications

BrandTenda
NameAC21
TypeAC21
Rating
Rated 3/5 based on 1116 user votes.
Launch2020

Body

Dimensions231.3 x 150.6 x 39.6 mm
Weight381 g

If you plan to move or travel a lot and need to take your router with you, the size is important. It needs to be small to be easy to carry. The weight of a router can matter in some situations. But, it is usually not as crucial as other factors. These factors include features and compatibility.

Tenda AC21 (AC21) / 2

System

ChipsetRealtek RTL8197FH @ 1 GHz
RAM64 MB
Flash8 MB
OSTenda
Power supply12 V / 1.5 A

The Realtek RTL8197FH @ 1 GHz CPU provides processing power. It handles tasks and services within the AC21 router. The amount of RAM in a router can affect its performance. It also affects its capacity to handle concurrent operations and traffic. The 8 MB flash memory in the router serves as the storage medium for the router's firmware. The firmware upgrade process may vary depending on the router model. However, it often involves accessing the router's web-based administration interface. The Tenda packages the AC21 router with 12 V / 1.5 A PSU.

Tenda AC21 (AC21) / 1

Network

ProtocolsIPv4
IPv6
LAN ports3 x 10/100/1000 Mbps
WAN ports1 x 10/100/1000 Mbps
Mobile networkno
VPN supportPPTP
L2TP

Like many modern routers, the AC21 supports many network standards too. The IPv4 uses 32-bit addresses, represented as four sets of numbers separated by periods (e.g. 192.168.0.1). The router also supports IPv6. This allows you to use the latest Internet Protocol. This router has Gigabit Ethernet LAN ports. They provide data transfer speeds of up to 1000 Mbps (1 Gbps) over Ethernet connections. This router ensures that you can use fast internet from your ISP fully. The PPTP is an older VPN protocol. It was widely used in the past.

Tenda AC21 (AC21) / 3

Wireless

Antennas6 x 6 dBi
fixed
2.4 GHzyes
5 GHzyes
6 GHzno
60 GHzno
StandardsIEEE 802.11a/b/g/n/ac
ClassAC2100
Speed300 + 1733 Mbps
Transmit power23 dBm
SecurityWPA
WPA2
WPS
Guest networkyes

A well-positioned antenna can reduce interference and signal weakening. This leads to a more reliable connection. The AC21 is compatible with 2.4 GHz Wi-Fi networks. Using the 5 GHz band can move some devices from the crowded 2.4 GHz band. This cuts congestion and boosts the network. Wi-Fi 5 uses the 5 GHz band. It uses wider channels and advanced techniques to send data faster. Real-world AC21 router speeds are lower than its theoretical maximum speed.

The introduction of WPA2 (Wi-Fi Protected Access 2) improved upon WEP. It provides stronger security. WPS (Wi-Fi Protected Setup) provides an easy method. It connects devices to a Wi-Fi network.

Connectivity

USB portsno
Print serverno
File serverno

The AC21 router doesn't have file-server or print-server functionality.

Administration

Default IP192.168.0.1
Default username[blank]
Default password[blank]

If you can't log in to your Tenda router's setup panel, try resetting it. A reset can help you troubleshoot. It is highly recommended to change the default password of your AC21 router. Do this after the initial setup.

Pros and Cons

Every router, including this Tenda one, has its good sides and not-so-good sides. Let's take a closer look at both to get a full understanding of what this router can do. We'll talk about what it does well and also where it could use some improvements. Just remember, this is just what I think, and you might see things differently.

Pros

  • lightweight
  • sufficient memory
  • IPv6 capable
  • high-speed LAN port
  • high-speed WAN port
  • works on 5 GHz band
  • decent Wi-Fi performance
  • WPS friendly

Cons

  • insufficient flash
  • missing Wi-Fi 6 support
  • incompatible with WPA3
  • no USB connectivity

Tenda AC21 photos

Tenda AC21 / AC21 photo
Tenda AC21 / AC21 photo
Tenda AC21 / AC21 photo
Tenda AC21 / AC21 photo
Tenda AC21 / AC21

Tenda AC21 comparisons

We've noticed that many of our visitors like to compare the Tenda AC21 router with these popular models.

Tenda AC15 (AC15) Tenda AC15 Tenda FH456 (FH456) Tenda FH456 Tenda RX2 (RX2) Tenda RX2 Tenda AC23 (AC23) Tenda AC23

If there’s information about the Tenda AC21 that you would like to see on this site, then write to us.

Robert Miller
For over 15 years, I've immersed myself in the world of networking devices as a tech aficionado. I've dedicated myself to thoroughly testing and analyzing routers and other networking gear. I aim to provide thorough reviews. They will give you the knowledge needed to improve your network.
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