TP-Link TL-MR6400: OpenWrt Compatibility Report

The TP-Link TL-MR6400 runs OpenWrt 25.12.1 on the ath79/generic target, and has been supported since 18.06.0. 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 TP-Link TL-MR6400, 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 8 MB
Ethernet ports 4
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 18.06.0
Install method U-Boot TFTP recovery, see git-commit
Install difficulty moderate
Power supply 12 VDC, 1.0A
Device type Home router
Estimated throughput 81 Mbps
Availability discontinued

Installing OpenWrt on the TL-MR6400

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, see git-commit.

Official OpenWrt device page for the TL-MR6400

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-MR6400 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 25.12.1 Qualcomm Atheros QCA9531
V5 ramips/mt76x8 25.12.2 MediaTek MT7628N
V4 ramips/mt76x8 25.12.2 MediaTek MT7628N

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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