ASUS RT-N56U: OpenWrt Compatibility Report
The ASUS RT-N56U runs OpenWrt 24.10.5 on the ramips/mt7621 target, and has been supported since 21.02.0. Its WiFi 4 (N) wireless on the mt76 driver rates good for open-source driver support (0.80/1.0), 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 ASUS RT-N56U, which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | MediaTek MT7621ST |
|---|---|
| CPU | 1 core @ 880 MHz |
| RAM | 128 MB |
| Flash | 16 MB |
| Ethernet ports | 5 |
| USB | 2x 2.0 |
| WiFi generation | WiFi 4 (N) |
| Radios | 2.4GHz: b/g/n · 5GHz: a/n |
| WLAN hardware | MediaTek MT7603EN, MediaTek MT7612EN |
| WLAN driver | mt76 |
| OpenWrt target | ramips / mt7621 |
| Package architecture | mipsel_24kc |
| Current release | 24.10.5 |
| Supported since | 21.02.0 |
| Install method | Asus Firmware Restoration tool, U-Boot TFTP recovery |
| Install difficulty | moderate |
| Power supply | 12 VDC, 1.5 A |
| Device type | Home router |
| Estimated throughput | 110 Mbps |
| Availability | discontinued |
Installing OpenWrt on the RT-N56U
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: Asus Firmware Restoration tool, U-Boot TFTP recovery.
Official OpenWrt device page for the RT-N56U
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 RT-N56U ships in several hardware revisions with different chipsets. Match the version printed on your device label before flashing.
| Version | Target | Current release | WLAN hardware |
|---|---|---|---|
| B1 shown above | ramips/mt7621 | 24.10.5 | MediaTek MT7603EN, MediaTek MT7612EN |
| A1 | ramips/rt3883 | 25.12.1 | Ralink RT3662F, Ralink RT3092L |
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