D-Link DWR-921: OpenWrt Compatibility Report
The D-Link DWR-921 runs OpenWrt 25.12.2 on the ramips/mt7620 target, and has been supported since 18.06.0. Its WiFi 4 (N) wireless on the mt76 driver rates fair for open-source driver support (0.50/1.0), installation is rated easy, and we have no current US retail listing for it.
Hardware data and retail listings last checked .
Where to buy
We have no current retail listing for the D-Link DWR-921, which is no longer sold new. See current alternatives for devices you can still buy today.
Specifications
| SoC | MediaTek MT7620N |
|---|---|
| CPU | 1 core @ 580 MHz |
| RAM | 64 MB |
| Flash | 16 MB |
| Ethernet ports | 5 |
| WiFi generation | WiFi 4 (N) |
| Radios | 2.4GHz: b/g/n |
| WLAN hardware | MediaTek MT7620N |
| WLAN driver | mt76 |
| OpenWrt target | ramips / mt7620 |
| Package architecture | mipsel_24kc |
| Current release | 25.12.2 |
| Supported since | 18.06.0 |
| Install method | GUI OEM, JBoot web recovery |
| Install difficulty | easy |
| Power supply | 12 VDC, 1.0A via barrel |
| Device type | Home router |
| Estimated throughput | 72 Mbps |
| Availability | not_available |
Installing OpenWrt on the DWR-921
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: GUI OEM, JBoot web recovery.
Official OpenWrt device page for the DWR-921
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 DWR-921 ships in several hardware revisions with different chipsets. Match the version printed on your device label before flashing.
| Version | Target | Current release | WLAN hardware |
|---|---|---|---|
| C3 shown above | ramips/mt7620 | 25.12.2 | MediaTek MT7620N |
| C1 | ramips/mt7620 | 25.12.2 | MediaTek MT7620N |
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