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TP-Link Archer AX21, which states in writing that it has no 6 GHz band review

The only router on this shelf that states in writing that it has no 6 GHz band, breaks its class figure into the two radios that make it, and names its VPN server by protocol — and never counts its Ethernet sockets.

The first bullet ends with a sentence worth more than any figure on the page: “Dual-Band WiFi routers do not support the 6 GHz band.”

On a shelf where AX1800 and AXE5400 sit a few lines apart and look like the same kind of label, that is the sentence that stops a wrong purchase. Wi-Fi 6E and Wi-Fi 7 add a 6 GHz band; Wi-Fi 6 does not, and a buyer who has read that a 6 GHz band is the point of the new generation will otherwise discover the difference after unpacking. Ten routers sit on this shelf and this is the only listing that rules the band out explicitly.

The second bullet does the other thing this shelf needs: it breaks the class figure apart. AX1800 is 1.8 Gbps total, given as up to 1200 Mbps on 5 GHz and up to 574 Mbps on 2.4 GHz — and 1200 plus 574 is 1774, which rounds to 1800. The intro to this section explains that a class figure adds the theoretical peaks of the radios together and that no single device ever sees the sum. A page that publishes both halves lets a reader check the arithmetic and see which radio their own device will actually use. The NETGEAR R6700AX gives 1.8 Gbps and stops.

The sixth bullet names the VPN server by protocol: OpenVPN and PPTP. That is better than the NETGEAR RAX36, which says “built-in VPN” and names nothing (the Cudy WR3000 goes further, with five protocols) — and the distinction matters, because PPTP is long since broken as a security protocol while OpenVPN is not. Naming both lets a reader choose the one that works.

The fourth bullet gives the radio hardware: beamforming, four high-gain antennas and an advanced front-end module chipset. The Archer AX55 and the Tenda AC10 also publish four; the NETGEAR listings here describe none at all.

What the page never does is count the Ethernet sockets. The title calls it a gigabit router and the description repeats it; no bullet gives a LAN port count, a WAN port and no separate rating for either. The NETGEAR R6700AX publishes four LAN ports and a distinct WAN port. On a device that hands out wired sockets as one of its three jobs, leaving the count out is the omission that matters.

No USB socket is named. No stream count appears. The third bullet gives OFDMA for serving more devices at once, and the first notes that all Wi-Fi routers require a separate modem — the same honesty the NETGEAR pages show about what a router is not. The seventh names the American providers it works with, which is useful in a market where a provider’s combined box is the usual starting point.

The description gives 24/7 technical support and a two-year warranty, with the claim that this is a year more than most networking brands. The eighth bullet prints a US support telephone number, the same one the Archer AX55 listing gives.

Where it holds up, and where it stops

Strengths

  • The only listing on this shelf that states in writing that it has no 6 GHz band, which is the mistake this shelf most invites
  • Breaks its class figure into the two radios that make it — 1200 and 574 — so the arithmetic can be checked
  • Names its VPN server by protocol, OpenVPN and PPTP, where the NETGEAR RAX36 says only "built-in VPN"
  • Four high-gain antennas with beamforming and a front-end module
  • 802.11ax published as well as Wi-Fi 6, which neither NETGEAR listing here does
  • A two-year warranty, 24/7 support and a published US telephone number

Compromises

  • No Ethernet socket is counted anywhere, on a device whose third job is handing out wired sockets
  • No WAN port named and no socket given a rating — gigabit describes the router rather than any port
  • No stream count and no USB socket published
  • PPTP is named as a VPN server protocol and has been considered broken for years; the page offers it without that caveat

Specifications

Wi-Fi generationWi-Fi 6 — stated in the title and in the first bullet, which also states outright that dual-band routers do not support the 6 GHz band. It is the only listing on this shelf to exclude that band in writing
IEEE designation802.11ax — stated in the first bullet alongside the Wi-Fi 6 name. Only the ASUS RT-AX52 Pro listing also prints a clause number; the two NETGEAR routers publish none
Stated class figureAX1800, broken into its parts — the second bullet gives 1.8 Gbps total as up to 1200 Mbps on 5 GHz and up to 574 Mbps on 2.4 GHz, which sums to 1774 and rounds to the label. It is the theoretical sum of the radios and no single device sees it
Band countTwo — 5 GHz and 2.4 GHz, stated in the second bullet, with the first ruling out a 6 GHz band in as many words
Stream countNot published on the listing — no stream figure appears in the title or in any of the eight bullets
WAN port speedNot published on the listing — no WAN socket is named or rated. The title calls the unit a gigabit router and the description repeats it, and neither assigns a speed to a particular socket
LAN port speedNot published on the listing as a socket rating — gigabit appears as a description of the router rather than of its sockets
Port countNot published on the listing — no Ethernet socket is counted anywhere in the title, the eight bullets or the description. The R6700AX publishes four LAN ports and a separate WAN port, and the Cudy WR3000 one WAN and three LAN
USB portsNot published on the listing — no USB socket is named anywhere on the page
Antenna arrangementFour high-gain antennas, with beamforming and an advanced front-end module chipset — stated in the fourth bullet. The Archer AX55 and the Tenda AC10 also publish four; the two NETGEAR listings describe none
Amazon referenceB08H8ZLKKK
EAN0840460604901
On Amazon.comAmazon.com had an offer at $55 on October 26, 2026.

The questions that come up before an order

Does it have a 6 GHz band?

No, and the first bullet says so in as many words: dual-band routers do not support the 6 GHz band. That band belongs to Wi-Fi 6E and Wi-Fi 7, and this is Wi-Fi 6.

What does AX1800 mean?

The second bullet gives it: up to 1200 Mbps on 5 GHz plus up to 574 Mbps on 2.4 GHz, which sums to 1774 and rounds to 1800. No single device uses both at once, so the label is a sum rather than a speed.

How many Ethernet sockets?

The page does not say. The title calls it a gigabit router and no bullet counts a socket. The NETGEAR R6700AX publishes four LAN ports and a separate WAN port.

Which VPN protocols does the server support?

OpenVPN and PPTP, named in the sixth bullet. PPTP has long been regarded as insecure, so OpenVPN is the one to use of the two.

Against the rest of the network and storage gear

This network and storage gear share the category and the price bracket. Only what each one states is shown; an incomplete column would mislead.

Model Price Wi-Fi generationIEEE designationStated class figureBand count
TP-Link Archer AX21, which states in writing that it has no 6 GHz band $55 Wi-Fi 6 — stated in the title and in the first bullet, which also states outright that dual-band routers do not support the 6 GHz band. It is the only listing on this shelf to exclude that band in writing802.11ax — stated in the first bullet alongside the Wi-Fi 6 name. Only the ASUS RT-AX52 Pro listing also prints a clause number; the two NETGEAR routers publish noneAX1800, broken into its parts — the second bullet gives 1.8 Gbps total as up to 1200 Mbps on 5 GHz and up to 574 Mbps on 2.4 GHz, which sums to 1774 and rounds to the label. It is the theoretical sum of the radios and no single device sees itTwo — 5 GHz and 2.4 GHz, stated in the second bullet, with the first ruling out a 6 GHz band in as many words
Cudy WR3000, dual-band AX3000 Wi-Fi 6 router with four Gigabit ports $50 Wi-Fi 6 — stated in the title and in the first bulletNot published on the Amazon.com listing — the only other standard named is AC1200, as the comparison the first bullet measures againstAX3000 — stated in the title, with the parts in the first bullet: 2402 Mbit/s at 5 GHz and 574 Mbit/s at 2.4 GHz, with 160 MHz channels and 1024-QAM. Those come to 2976, so the badge rounds up by 24Two — 5 GHz at 2402 Mbit/s and 2.4 GHz at 574 Mbit/s, stated in the first bullet
NETGEAR Nighthawk R6700AX, WPA3 out of the box and a subscription after thirty days $50 Wi-Fi 6 — stated in the title and in the first and fourth bullets, with backwards compatibility to Wi-Fi 5 and earlier named in the fourthNot published on the listing — neither 802.11ax nor any other clause number appears in the title, the eight bullets or the description, so the generation is given only by its marketing name1.8 Gbps across the 2.4 and 5 GHz bands — stated in the title and in the fourth bullet as a single sum. The two bands are not broken out, where the Archer AX21 gives 1200 and 574 separately. It is the theoretical sum of the radios rather than a throughputTwo — the fourth bullet names 2.4 GHz and 5 GHz. No 6 GHz band is claimed
Tenda AC10, dual-band AC1200 router with four Gigabit ports $36 Wi-Fi 5 (802.11ac Wave 2) — not named on the Amazon.com listing; Tenda's product page gives 802.11ac Wave 2.0802.11ac — on Tenda's product page; the Amazon.com listing gives only the AC1200 classAC1200, up to 1.2 Gbps — stated in the title, with both parts in the first bullet: 867 Mbit/s at 5 GHz and 300 Mbit/s at 2.4 GHz, which come to 1167, so the badge rounds up by 33Two — 5 GHz at 867 Mbit/s and 2.4 GHz at 300 Mbit/s, stated in the first bullet

What separates the models, in network and storage gear

  • If price decides: Tenda AC10, dual-band AC1200 router with four Gigabit ports, at $36.
  • Highest Wi-Fi generation in the table: NETGEAR Nighthawk R6700AX, WPA3 out of the box and a subscription after thirty days (Wi-Fi 6 — stated in the title and in the first and fourth bullets, with backwards compatibility to Wi-Fi 5 and earlier named in the fourth).
  • Highest Band count in the table: Tenda AC10, dual-band AC1200 router with four Gigabit ports (Two — 5 GHz at 867 Mbit/s and 2.4 GHz at 300 Mbit/s, stated in the first bullet).

The buyer this one serves, among network and storage gear

A household that wants Wi-Fi 6 and a VPN server, and will find out the socket count from the photograph.

What this one costs among network and storage gear

Details checked on October 26, 2026.

The network and storage gear guides it appears in

What buyers actually choose

Amazon reports what buyers took in the month before this page was last checked: at least 10,000.

The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.

Sources

Specifications: the manufacturer sheet for network and storage gear and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.

What we look at on this network and storage gear

Every price named in a summary was read on the date that review carries. What a shop asks today is shown beside the product, and it moves.