TP-Link Deco M5, P7 and M9 Plus lights: what each colour means

5 light states of the TP-Link Deco M5, P7 and M9 Plus, from TP-Link Deco’s own page What Do Deco LED Colors Mean? (Deco LED Light Colors Explained). It has one light on the unit; these older models have no pulsing yellow, green or red.

Green, solid
Deco is registered and all is well.
TP-Link Deco’s page gives no step for this light.
Source: What Do Deco LED Colors Mean? (Deco LED Light Colors Explained) (TP-Link), checked 2026-09-29.
Yellow, solid
The Deco unit is starting up.
What TP-Link Deco says to do
1. Wait two minutes. If it does not change, power cycle the unit (TP-Link’s ‘how to reset or reboot your Deco’ has more).
Source: What Do Deco LED Colors Mean? (Deco LED Light Colors Explained) (TP-Link), checked 2026-09-29.
Blue, pulsing
Deco is ready for setup.
TP-Link Deco’s page gives no step for this light.
Source: What Do Deco LED Colors Mean? (Deco LED Light Colors Explained) (TP-Link), checked 2026-09-29.
Blue, solid
Deco is setting up.
TP-Link Deco’s page gives no step for this light.
Source: What Do Deco LED Colors Mean? (Deco LED Light Colors Explained) (TP-Link), checked 2026-09-29.
Red, solid
Deco has an issue.
What TP-Link Deco says to do
1. Reboot the unit and check your Internet connection. If it continues, see TP-Link’s ‘why your Deco units may be showing offline’.
Source: What Do Deco LED Colors Mean? (Deco LED Light Colors Explained) (TP-Link), checked 2026-09-29.

Other TP-Link Deco routers

The same colour can mean something else on another TP-Link Deco router, so check the name on your router’s label.

TP-Link Deco’s own pages only, read on the date shown. Nothing here comes from third-party router-light sites.

TP-Link: What Do Deco LED Colors Mean? (Deco LED Light Colors Explained) — Deco X and BE series and most Deco models; Deco M4, E4, W2400; Deco M5, P7, M9 Plus (FAQ 1464, last updated April 17, 2026). www.tp-link.com Checked 2026-09-29.