TP-Link Deco mesh wifi troubleshooting

Published specification

What is true of this model and changes how you fix it

• Official specifications
  BE22000 class: 6GHz 11,530Mbps + 5GHz 8,647Mbps + 2.4GHz 1,376Mbps. Per unit: one 10Gbps port, one 10Gbps SFP+/RJ45 combo port, two 2.5Gbps WAN/LAN ports, one USB 3.0 port. 8 high-gain antennas, sold in 1/2/3-pack configurations.
• Wi-Fi 7 tri-band MESH
  A flagship Wi-Fi 7 (BE) Deco mesh with 2.4/5/6 GHz and multi-gig ports. Units cover a large home; a weak room usually means a node is too far. Wi-Fi 7/6 GHz needs compatible clients.
• Mesh backhaul
  A node offline/slow is usually its wireless backhaul — place nodes within range or use Ethernet backhaul between them for best results. Deco can also use 6 GHz as backhaul.
• Managed by Deco app only
  Deco is managed through the Deco app (no traditional web admin), which is where you check node status, backhaul and settings.
• Speeds (from TP-Link's product page)
  A Wi-Fi 7 tri-band mesh with 11530 Mbps on 6 GHz, 8647 Mbps on 5 GHz and 1376 Mbps on 2.4 GHz.
• Ports and USB
  Per unit, one 10 Gbps RJ45 and SFP+ combo port, two 2.5 Gbps ports and one USB 3.0 port.
• Wi-Fi 7 features
  Multi-Link Operation, 320 MHz channels and 4K-QAM.
• Coverage and size
  A 3-pack covers up to 9,600 sq ft and connects 200 or more devices. Each unit is 5.04 x 5.04 x 9.29 in.
• HomeShield
  Parental controls, threat monitoring and device isolation.
• Wi-Fi 7 and 10 gigabit ports
  The BE85 uses Wi-Fi 7 and has a 10-gigabit port, so a fast fiber line can be used at its full rate with a wired device. Most phones and laptops will not yet reach the highest speeds, so a modest result on one device is not a sign of a fault.
• Using a wired backhaul
  Between Deco units, a cable of Cat 6 or better gives the most stable link. Set the unit to wired in the Deco app, and place the units where they cover the house, not where the cable is most convenient.
• Also covered
  Deco X55 mesh, speeds (from TP-Link's product page): 2402 Mbps on 5 GHz (HE160) and 574 Mbps on 2.4 GHz with 2x2 MU-MIMO.
• Also covered
  Deco X55 mesh, coverage: A 2-pack covers up to 4,500 sq ft and a 3-pack up to 6,500 sq ft, connecting over 150 devices.
• Also covered
  Deco X55 mesh, ports: Three Gigabit ports per unit with WAN/LAN auto-sensing, in a 4.33 x 4.33 x 4.49 in unit.
• Also covered
  Deco X55 mesh, mesh and security: TP-Link Mesh with AI-Driven Mesh, and HomeShield with real-time IoT protection, a malicious site blocker, intrusion prevention, DDoS prevention and parental controls.

Where these figures were read. tp-link.com/us/home-networking/deco/deco-be85/ (Deco BE85 — BE22000 Tri-Band Wi-Fi 7 Mesh System)

Manufacturer support for this product line. TP-Link Support — Support center. Official TP-Link Archer, Deco, switch and extender manuals and firmware.

Also read for this model. TP-Link — Deco BE85; TP-Link — Deco X55.