TP-Link TL-WR842N: OpenWrt Compatibility Report
The TP-Link TL-WR842N runs OpenWrt 25.12.1 on the ath79/generic target, and has been supported since 17.01.0. Its WiFi 4 (N) wireless on the ath9k driver rates excellent for open-source driver support (0.85/1.0), installation is rated easy, 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-WR842N, which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | Qualcomm Atheros QCA9531 |
|---|---|
| CPU | 1 core @ 650 MHz |
| RAM | 64 MB |
| Flash | 16 MB |
| Ethernet ports | 5 |
| USB | 1x 2.0 |
| WiFi generation | WiFi 4 (N) |
| Radios | 2.4GHz: b/g/n |
| WLAN hardware | Qualcomm Atheros QCA9531 |
| WLAN driver | ath9k |
| OpenWrt target | ath79 / generic |
| Package architecture | mips_24kc |
| Current release | 25.12.1 |
| Supported since | 17.01.0 |
| Install method | GUI OEM |
| Install difficulty | easy |
| Power supply | 12 VDC, 1.0A |
| Device type | Home router |
| Estimated throughput | 81 Mbps |
| Availability | discontinued |
Installing OpenWrt on the TL-WR842N
Installation on this device is rated easy. You can flash it from the stock web interface without opening the case or using a serial cable. Documented methods: GUI OEM.
Official OpenWrt device page for the TL-WR842N
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-WR842N ships in several hardware revisions with different chipsets. Match the version printed on your device label before flashing.
| Version | Target | Current release | WLAN hardware |
|---|---|---|---|
| V3 shown above | ath79/generic | 25.12.1 | Qualcomm Atheros QCA9531 |
| V5 | ramips/mt76x8 | 25.12.2 | MediaTek MT728NN |
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