FriendlyElec R5C RTL8822CE WiFi chip does not support 5GHz AP mode.
Both wlan0 and wlan1 locked to 2.4GHz-only (mode 2) by firmware/driver.
Tested:
- Channel 149 (5GHz): fails with 'mode (2) not found'
- Channel 36 (5GHz): fails with 'mode (2) not found'
- Both wlan0 and wlan1: same limitation
- Regulatory domain persistence doesn't change mode
Solution: Configure hostapd for 2.4GHz (hw_mode=g, channel 6)
- VanLink2 now on wlan1, 2.4GHz channel 6
- VanLink2-2G still on wlan2, 2.4GHz channel 6
- Both working stably
R5C not recommended for 5GHz AP use; consider Pi 5 or other board
if 5GHz dual-band AP is required.
Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
andreasandClaude Haiku 4.5
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