Open-Mesh MR900: OpenWrt Compatibility Report
The Open-Mesh MR900 runs OpenWrt 25.12.5 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 it is no longer sold new.
Hardware data and retail listings last checked .
Where to buy
We have no current retail listing for the Open-Mesh MR900, which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | Qualcomm Atheros QCA9558 |
|---|---|
| CPU | 1 core @ 720 MHz |
| RAM | 128 MB |
| Flash | 16 MB |
| Ethernet ports | 1 |
| WiFi generation | WiFi 4 (N) |
| Radios | 2.4GHz: b/g/n · 5GHz: a/n |
| WLAN hardware | Qualcomm Atheros QCA9558, Atheros AR9580 |
| WLAN driver | ath9k |
| OpenWrt target | ath79 / generic |
| Package architecture | mips_24kc |
| Current release | 25.12.5 |
| Supported since | 15.05 |
| Install method | U-Boot TFTP recovery |
| Install difficulty | moderate |
| Power supply | 12 VDC, 2.0A, PoE 802.3af |
| Device type | Access point |
| Estimated throughput | 90 Mbps |
| Availability | discontinued |
Installing OpenWrt on the MR900
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.
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 MR900 ships in several hardware revisions with different chipsets. Match the version printed on your device label before flashing.
| Version | Target | Current release | WLAN hardware |
|---|---|---|---|
| V1 shown above | ath79/generic | 25.12.5 | Qualcomm Atheros QCA9558, Atheros AR9580 |
| V2 | ath79/generic | 25.12.5 | Qualcomm Atheros QCA9558, Qualcomm Atheros QCA9580 (mini-PCIe) |
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