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TL-MR3420
TP-LINK TL-MR3420 wireless router Fast Ethernet Black, White...
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TL-MR3420 is a fixed-architecture wireless router engineered for mobile broadband, delivering high-speed 802.11n connectivity with up to 150 Mbps throughput. It is powered by a dedicated DC power supply and features a single WAN port alongside four LAN ports, enabling integrated Internet connectivity with built-in VPN support and firewall protection.
The TL-MR3420 is optimized for small business and travel use cases by providing reliable performance over standard 10/100 Ethernet interfaces and secure remote access via IPSec VPN capabilities. Its design does not include modular or redundant power features, focusing instead on simplicity, efficient routing, and dependable mobile network integration.
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| TL-MR3420 |  ARCHER C20 |  ARCHER AX53 |  ARCHER VR2100 |  ARCHER AX55 | |
|---|---|---|---|---|---|
| 5G Support | No | No | No | No | No |
| Architecture | Fixed | Fixed | Fixed | Modular | Fixed |
| Broadband | 4G | N/A | N/A | N/A | N/A |
| Built-in Security Features | Firewall | Firewall | Firewall | Firewall / Intrusion Prevention / Malware Protection | Firewall / Intrusion Prevention |
| Compliance Standards | FCC / CE | FCC, CE | FCC, CE, RoHS | FCC / CE | IEEE 802.11, WPA3 |
| Connectivity Type | Wired / Wireless / Ethernet | Wired / Wireless / Ethernet | Wired / Wireless | Wired / Wireless | Wired / Wireless |
| Depth | N/A | N/A | 9.45 inches | 16 inches | N/A |
| Device Type | Router | Router | Router | Router | Router |
| EMC | N/A | N/A | N/A | N/A | N/A |
| Ethernet Technology | 10/100 | 10/100 | 10/100/1000 | 10/100/1000 | 10/100/1000 |
| Expansion Slots | N/A | N/A | N/A | NIM | N/A |
| Features | VPN / Firewall / IPv6 Compatible | IPv6 Compatible / Firewall | VPN / IPv6 Compatible / Firewall | VPN / Firewall / QoS / IPv6 Compatible | VPN, IPv6 Compatible, Firewall, Parental Controls, QoS |
| Firewall Features | Yes | Yes | Yes | Yes | Yes |
| Flash Memory | 16 MB | 32 MB | 256 MB | 1 GB | 256 MB |
| Form Factor | Desktop | Desktop | Desktop | Rack-mount | Desktop |
| Height | N/A | N/A | 2.2 inches | 1.75 inches | N/A |
| High Availability Support | Not Supported | Not Supported | Not Supported | Supported | Not Supported |
| Integrated Services | N/A | N/A | N/A | Voice / Video / WAN Optimization | VPN, Parental Controls |
| Interface Ports | RJ-45 | RJ-45 | RJ-45 | RJ-45 / SFP | RJ-45 / USB |
| LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports | 4 LAN Ports |
| Management | Unmanaged | Managed | Unmanaged | Managed | Managed |
| Memory | 64 MB | 128 MB | 512 MB | 4 GB | 512 MB |
| Modular Slots Available | N/A | N/A | N/A | 3+ Slots | N/A |
| Network Protocols | TCP/IP, DHCP, DNS, NAT | IPv4, IPv6 | 802.11a/b/g/n/ac/ax | IPv4 / IPv6 | 802.11ax, 802.11ac, 802.11n |
| Power | 12W | 12W | 24 W | 150W | 36W |
| Power Source | DC Power Supply | AC Power Supply | AC Power Supply | AC Power Supply / Redundant | AC Power Supply |
| Product Name | TP-Link TL-MR3420 3G/4G Wireless N Router | TP-Link Archer C20 AC750 Wireless Dual Band Router | TP-Link Archer AX53 | ARCHER VR2100 | ARCHER AX55 |
| Product Type | Router | Router | Wireless Router | Enterprise Router | Wireless Router |
| QoS Features | Supported | Supported | Supported | Supported | Supported |
| Remote Management | HTTP / HTTPS | HTTP, HTTPS | Web GUI, TP-Link Tether | SSH / HTTPS / SNMP | Web UI / ASUS Router App |
| Routing Protocols | Static Routing | Static Routing / N/A | Static Routing | OSPF / BGP / Static Routing | Static Routing |
| Safety | N/A | N/A | N/A | N/A | N/A |
| Speed/Capacity | N/A | N/A | Gigabit | Gigabit | Gigabit |
| Stacking Capability | No | No | No | Yes | No |
| Telecom | N/A | N/A | N/A | N/A | N/A |
| Throughput Capacity | 0.15 Gbps | 0.75 Gbps | 3 Gbps | 2 Gbps | 1.8 Gbps |
| Use Case | Small Business / Travel | Small Business | Small Business | Enterprise | Home / Small Business |
| VPN Support | IPSec | N/A | N/A | IPSec / SSL VPN | IPSec / SSL VPN |
| WAN Configuration | WAN | WAN | WAN | Dual WAN | WAN |
| WAN Ports | 1 WAN | 1 WAN | 1 WAN | 2 WAN | 1 WAN |
| Weight | 1.1 lbs | N/A | 1.3 lbs | 10 lbs | N/A |
| Wi-Fi Standard | WiFi 4 | WiFi 5 | WiFi 6 | WiFi 6 | WiFi 6 / Dual band |
| Width | N/A | N/A | 8.5 inches | 17.5 inches | N/A |
| Wireless Support | Yes | Yes | Yes | Yes | Yes |
Useful router for mobile broadband, stable connection and easy failover for small office use.
Great for temporary sites, quick setup and reliable connectivity for basic business needs.
Handled backup internet smoothly, kept critical services online during primary link issues.
Simple interface and stable performance, works well for small teams and remote locations.
Reliable for 3G and 4G failover setups, steady uptime and straightforward configuration.
Good value router, stable WiFi and dependable connectivity when used as backup WAN.
The TL-MR3420 delivers wireless N speeds up to 150 Mbps, Fast Ethernet WAN/LAN ports, 3G/4G USB modem sharing, WPA/WPA2 encryption, WPS one-touch setup and multiple operating modes (Router, AP, Range Extender, WISP).
Connect your modem to the WAN port, plug in the TL-MR3420, access http://tplinklogin.net via a web browser, log in with default credentials (admin/admin), and follow the Quick Setup wizard to configure Internet and wireless settings.
The TL-MR3420 supports major 3G/4G USB modems from Huawei, ZTE and other vendors; check TP-LINK’s online compatibility list to confirm model-specific support before purchase.
This router supports IEEE 802.11b/g/n standards at up to 150 Mbps on the 2.4 GHz band, ideal for streaming, gaming and web browsing.
The TL-MR3420 can handle up to 32 concurrent wireless clients, with IP-based bandwidth control to ensure stable performance for all users.
Yes. You can enable a separate guest SSID with its own password and bandwidth limits to keep your primary network secure.
It offers WPA/WPA2 encryption, SPI firewall protection, DoS attack prevention and guest network isolation to safeguard your home or office network.
Log into the router’s web interface, go to Wireless > Wireless Security, select WPA2-PSK, choose AES encryption, set a strong passphrase and click Save.
The router can function as a Wireless Router, Access Point, Range Extender or WISP to adapt to various network scenarios.
With the router powered on, press and hold the Reset button for 8 seconds until the Power LED blinks, then release to restore factory settings.
With its two fixed 5 dBi antennas, the TL-MR3420 covers a typical home or small office environment up to 100 m indoors and 300 m outdoors, subject to obstructions.
Yes. Simply press the WPS button on the router and then on your WPS-enabled device to establish a secure wireless connection without entering a password.
Download the latest firmware from TP-LINK’s support site, log into the router’s web interface, navigate to System Tools > Firmware Upgrade, upload the file and wait for the reboot.
It features one Fast Ethernet WAN port, four Fast Ethernet LAN ports and one USB 2.0 port for 3G/4G modem or file sharing.
Go to Bandwidth Control > Rules List in the web interface, enable Bandwidth Control, define IP ranges and assign upstream/downstream speed limits per device, then Save.
Yes. Under Wireless > Wireless Schedule, set time segments to enable or disable Wi-Fi access automatically on selected days and hours.
TP-LINK offers a limited two-year warranty on the TL-MR3420, covering hardware defects and replacement support.