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Support for TP-Link Archer T2U Plus (RTL8821AU) USB Wi-Fi adapter #90
Description
Hardware
- Adapter: TP-Link Archer T2U PLUS (
2357:0120) - Chip: Realtek RTL8821AU
- Driver:
8821au(DKMS, aircrack-ng fork viartl8821au-dkms-git) - OS: Arch Linux
- Kernel: 7.2.11-arch1-1
- owly version: 0.4.0 (
omdrop-owl-bin)
Problem
owly doctor and owly radio up both report:
hardware: This computer has no Wi-Fi interface that Owly can use.
The adapter is functional and supports monitor mode — it works with the older owl daemon using the -N flag (skip monitor mode setup, set manually via iw beforehand). AWDL peer discovery works correctly with owl -N, peers are seen in the log. The issue is only that owly does not recognize the adapter.
Test report
{
"owly": "0.4.0",
"time": 1792862873,
"kernel": "7.2.11-arch1-1",
"os": "Arch Linux",
"machine": "ASUS System Version",
"station": null,
"driver": null,
"device": null,
"status": null,
"mode": null,
"channel": null,
"transfers": "none",
"steps": [
{
"step": "probe",
"result": "fail",
"detail": "not ready"
}
],
"wifi": {
"baseline": null,
"window": null,
"after": null
}
}iw list (monitor mode supported)
Supported interface modes:
* IBSS
* managed
* AP
* AP/VLAN
* monitor
lsusb
Bus 003 Device 002: ID 2357:0120 TP-Link Archer T2U PLUS [RTL8821AU]
Workaround
Manually set monitor mode and use the old owl daemon with -N:
sudo ip link set wlp13s0f3u3 down
sudo iw dev wlp13s0f3u3 set type monitor
sudo ip link set wlp13s0f3u3 up
sudo owl -i wlp13s0f3u3 -N &This works for AWDL peer discovery. Would be great if owly could either auto-detect this adapter or support a --no-monitor-mode / -N flag similar to owl.
Activity
NivedV1 commentedon Oct 25, 2026
#84#issuecomment-6394368182
can you check with this i was having the same issues
t4t5 commentedon Oct 31, 2026
Thanks! Could you post the output of
iw dev?