TL-WR840N V6.20 is a 300 Mbps wireless N router from TP-Link, built for quick, everyday Wi-Fi in homes that need dependable coverage without unnecessary complexity. Complying with the IEEE 802.11n standard, this router is a straightforward, budget-friendly option for HD streaming, online gaming, and large file downloads.
The TL-WR840N V6.20 delivers wireless speeds up to 300 Mbps over the 2.4GHz band, compatible with IEEE 802.11b/g/n devices. Two fixed antennas provide dependable coverage for 2-bedroom houses, a solid fit for apartments and smaller homes.
A key feature of the TL-WR840N V6.20 is its support for four operating modes: Router Mode connects directly to Ethernet to instantly create a private wireless network; Access Point Mode transforms an existing wired network into a wireless one; Range Extender Mode boosts existing Wi-Fi coverage in weak-signal areas; and WISP Mode connects wirelessly to an ISP’s network in areas without wired service. Notably, WISP mode is only supported on version 6.20 or higher of this router, making this particular version more versatile than earlier hardware revisions.
Parental Controls on the TL-WR840N V6.20 let parents or administrators deploy restricted internet access for children or staff, with URL blocking that supports setting up a black or white list to control the level of web access allowed. A dedicated Guest Network function provides secure, separate Wi-Fi access for visitors, keeping the main household network protected while still sharing internet access easily.
Security includes WEP, WPA, WPA2, and WPA/WPA2-Enterprise (802.1x) encryption, alongside an SPI firewall, access control, IP & MAC binding, and application layer gateway protection. The TL-WR840N V6.20 supports both IPv4 and IPv6 protocols, and IPTV streaming is optimized through IGMP Proxy and IGMP Snooping support.
Connectivity includes 1 WAN port and 4 LAN ports at 10/100Mbps, along with NAT forwarding tools including port forwarding, port triggering, DMZ, and UPnP for applications needing direct external access. Quality of Service by device helps prioritize bandwidth where it’s needed most.
Powered by a single-core CPU, the TL-WR840N V6.20 is compact at 182 x 128 x 35mm and can be set up in minutes through either its intuitive web interface or the TP-Link Tether app, which also lets users manage parental controls and access control remotely from any Android or iOS device. For households that need simple, reliable Wi-Fi with genuine flexibility across different networking roles, the TL-WR840N V6.20 delivers dependable, no-frills performance.
TL-WR840N V6.20 Wireless Specifications
| Feature | Specification |
| Wireless Standards | IEEE 802.11n/b/g (2.4 GHz, Wi-Fi 4) |
| Wi-Fi Speeds (N300) | 2.4 GHz: Up to 300 Mbps (802.11n) |
| Wi-Fi Range Coverage | 2 Bedroom Houses |
| Antennas | 2 × Fixed Antennas |
| Wi-Fi Capacity | Legacy |
| Working Modes | Router Mode, Access Point Mode, Range Extender Mode, WISP Mode |
| Transmission Power (CE) | <20 dBm (2.4 GHz) |
| Transmission Power (FCC) | <30 dBm |
TL-WR840N V6.20 Security & Software
| Category | Specifications |
| Wi-Fi Encryption | WEP, WPA, WPA2, WPA/WPA2-Enterprise (802.1x) |
| Network Security | SPI Firewall, Access Control, IP & MAC Binding, Application Layer Gateway |
| Guest Network | 1 × 2.4 GHz Guest Network |
| WAN Types | Dynamic IP, Static IP, PPPoE, PPTP, L2TP |
| Network Protocols | IPv4, IPv6 |
| Quality of Service (QoS) | QoS by Device |
| NAT Forwarding | Port Forwarding, Port Triggering, DMZ, UPnP |
| IPTV Support | IGMP Proxy, IGMP Snooping |
| DHCP | Server, DHCP Client List, Address Reservation |
| DDNS | NO-IP, Comex, DynDNS |
| Parental Controls | URL Filtering, Time Controls |
| Management Features | Tether App, Webpage |
TL-WR840N V6.20 Hardware & Physical
| Feature | Specification |
| Processor | Single-Core CPU |
| Ethernet Ports |
• 1 × 10/100 Mbps WAN Port
• 4 × 10/100 Mbps LAN Ports
|
| Buttons | Reset Button |
| Power Supply | 9 V ⎓ 0.6 A |
| Dimensions (W × D × H) | 182 mm × 128 mm × 35 mm (7.2″ × 5.0″ × 1.4″) |
| Operating Temperature | 0 °C to 40 °C (32 °F to 104 °F) |
| Storage Temperature | –40 °C to 70 °C (–40 °F to 158 °F) |
| Operating Humidity | 10% to 90% RH, non-condensing |
| Storage Humidity | 5% to 90% RH, non-condensing |
| Certifications | FCC, CE, RoHS |
| Package Contents | Wi-Fi Router TL-WR840N, Power Adapter, RJ45 Ethernet Cable, Quick Installation Guide |
TL-WR840N V6.20 Default Network Services
| Service | Port | Protocol | Purpose |
| Web Server | 80 / 443 | TCP | Device configuration & management (HTTP/HTTPS) |
| DHCP Server | 67 | UDP | IP address assignment |
| App Management |
• 22
• 20001
• 20002
|
TCP
TCP
UDP
|
Management and configuration via app |
TL-WR840N V6.20 Receiver Sensitivity Highlights
| Data Rate | Receiver Sensitivity | Packet Error Rate (PER) |
| 270M | -68 dBm | 10% PER |
| 130M | -68 dBm | 10% PER |
| 108M | -68 dBm | 10% PER |
| 54M | -68 dBm | 10% PER |
| 11M | -85 dBm | 8% PER |
| 6M | -88 dBm | 10% PER |
| 1M | -90 dBm | 8% PER |
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