NETGEAR WNDR3400: OpenWrt Compatibility Report

The NETGEAR WNDR3400 runs OpenWrt 25.12.2 on the bcm47xx/mips74k target, and has been supported since 15.05. Its WiFi 4 (N) wireless on the b43 driver rates limited for open-source driver support (0.35/1.0), installation is rated easy, and it is no longer sold new. Its wireless does not work correctly under OpenWrt, so it is listed here for reference rather than as a recommendation.

Drivers: Limited (0.35) WiFi 4 (N) Install: easy

Hardware data and retail listings last checked .

Known broken wireless support. This device's WiFi does not work properly on OpenWrt. It is listed here for reference; do not buy it expecting working wireless.
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 NETGEAR WNDR3400, which is no longer sold new. See current alternatives for devices you can still buy today.

Specifications

SoC Broadcom BCM5358
CPU 1 core @ 530 MHz
RAM 64 MB
Flash 8 MB
Ethernet ports 5
USB 1x 2.0
WiFi generation WiFi 4 (N)
Radios 2.4GHz: b/g/n · 5GHz: a/n
WLAN hardware Broadcom BCM5358, Broadcom BCM43236KMLG
WLAN driver b43
OpenWrt target bcm47xx / mips74k
Package architecture mipsel_74kc
Current release 25.12.2
Supported since 15.05
Install method TFTP generic, GUI OEM
Install difficulty easy
Power supply 12 VDC, 1.5A via barrel
Device type Home router
Estimated throughput 66 Mbps
Availability discontinued

Installing OpenWrt on the WNDR3400

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: TFTP generic, GUI OEM.

Official OpenWrt device page for the WNDR3400

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 WNDR3400 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 bcm47xx/mips74k 25.12.2 Broadcom BCM5358, Broadcom BCM43236KMLG
V1 bcm47xx/mips74k 25.12.2 Broadcom BCM4718, Broadcom BCM43224

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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