info Tenda

Status Red Solid

The device is starting up.

? What Causes This

Normal startup sequence.

What This Means

Wait for the LED to change to blinking, indicating successful start.

Source: page 1 of the official manual

From the manual

Manual page 1 — Tenda error Red Solid

This error code appears in:

Tenda A9 Wireless N300 Universal Range Extender