Compex WPJ531: OpenWrt Compatibility Report
The Compex WPJ531 runs OpenWrt 25.12.2 on the ath79/generic target, and has been supported since 15.05. Its WiFi 4 (N) wireless on the ath9k driver rates excellent for open-source driver support (0.85/1.0), installation is rated moderate, and we have no current US retail listing for it.
Hardware data and retail listings last checked .
Where to buy
We have no current retail listing for the Compex WPJ531, which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | Qualcomm Atheros QCA9531 |
|---|---|
| CPU | 1 core @ 550 MHz |
| RAM | 64 MB |
| Flash | 16 MB |
| Ethernet ports | 2 |
| USB | 1x Header |
| WiFi generation | WiFi 4 (N) |
| Radios | 2.4GHz: b/g/n |
| WLAN hardware | Qualcomm Atheros QCA9531, mPCIe |
| WLAN driver | ath9k |
| OpenWrt target | ath79 / generic |
| Package architecture | mips_24kc |
| Current release | 25.12.2 |
| Supported since | 15.05 |
| Install method | see devicepage, see git-commit |
| Install difficulty | moderate |
| Power supply | 12-24 VDC via barrel, or 802.3af PoE |
| Device type | Home router |
| Estimated throughput | 68 Mbps |
| Availability | not_available |
Installing OpenWrt on the WPJ531
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: see devicepage, see git-commit.
See https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=9f261e36de799322512f36a54689260e617c4fba
Official OpenWrt device page for the WPJ531
Flashing third-party firmware can brick a router and usually voids the warranty. Always check that the firmware image matches your exact hardware version.
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