EnGenius ESR900: OpenWrt Compatibility Report

EnGenius ESR900 router
Image: OpenWrt Table of Hardware, CC BY-SA 4.0

The EnGenius ESR900 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 it is no longer sold new.

Drivers: Excellent (0.85) WiFi 4 (N) Install: moderate

Hardware data and retail listings last checked .

Discontinued. This model is no longer sold new, so this page is kept as a reference for people who already own one. See current alternatives.

Where to buy

We have no current retail listing for the EnGenius ESR900, 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 5
USB 1x 2.0
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 25.12.2
Supported since 15.05
Install method TFTP generic, see devicepage
Install difficulty moderate
Power supply 12 VDC, 1.5A via barrel
Device type Home router
Estimated throughput 90 Mbps
Availability discontinued

Installing OpenWrt on the ESR900

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: TFTP generic, see devicepage.

Official OpenWrt device page for the ESR900

Flashing third-party firmware can brick a router and usually voids the warranty. Always check that the firmware image matches your exact hardware version.

Still sold and well supported

GL.iNet GL-X300B (Collie)

WiFi 4 (N) Drivers: Excellent $126

KuWFi CPE830(D)

WiFi 4 (N) Drivers: Excellent

YunCore CPE830(D)

WiFi 4 (N) Drivers: Excellent

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