⚠
warning ASUS
Error Code Wi-Fi LED is red
RP-N12 provides poor Wi-Fi extender performance.
? What Causes This
Device is receiving weak or unreliable signal from the source router/AP.
✓ How to Fix It
Reposition the device to a better location near the source router/AP.
Source: page 4 of the official manual
From the manual
This error code appears in:
ASUS RP N12 Wireless N300 Range Extender