TP-Link TL-WR840N: OpenWrt Compatibility Report
The TP-Link TL-WR840N runs OpenWrt 25.12.2 on the ramips/mt76x8 target, and has been supported since 18.06.0. Its WiFi 4 (N) wireless on the mt76 driver rates fair for open-source driver support (0.65/1.0), installation is rated moderate, and it is no longer sold new.
Hardware data and retail listings last checked .
Where to buy
We have no current retail listing for the TP-Link TL-WR840N, which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | MediaTek MT7628N |
|---|---|
| CPU | 1 core @ 580 MHz |
| RAM | 64 MB |
| Flash | 8 MB |
| Ethernet ports | 5 |
| USB | Mod |
| WiFi generation | WiFi 4 (N) |
| Radios | 2.4GHz: b/g/n |
| WLAN hardware | MediaTek MT7628N |
| WLAN driver | mt76 |
| OpenWrt target | ramips / mt76x8 |
| Package architecture | mipsel_24kc |
| Current release | 25.12.2 |
| Supported since | 18.06.0 |
| Install method | U-Boot TFTP recovery, see git-commit |
| Install difficulty | moderate |
| Power supply | 9 VDC, 0.6 A |
| Device type | Home router |
| Estimated throughput | 72 Mbps |
| Availability | discontinued |
Installing OpenWrt on the TL-WR840N
Installation on this device is rated moderate. Expect to use a recovery mode, TFTP or a vendor tool rather than a plain web upload. Documented methods: U-Boot TFTP recovery, see git-commit.
Official OpenWrt device page for the TL-WR840N
Flashing third-party firmware can brick a router and usually voids the warranty. Always check that the firmware image matches your exact hardware version.
Hardware versions
The TL-WR840N ships in several hardware revisions with different chipsets. Match the version printed on your device label before flashing.
| Version | Target | Current release | WLAN hardware |
|---|---|---|---|
| V4 shown above | ramips/mt76x8 | 25.12.2 | MediaTek MT7628N |
| V6 | ramips/mt76x8 | EOL | MediaTek MT7628N |
| V3 | ar71xx/tiny | EOL | Qualcomm Atheros QCA9533 |
| V2 | ar71xx/tiny | EOL | Qualcomm Atheros QCA9533 |
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