@ianreneb As an owner of two M9 Plus and two M5s, here are my recommendations. The best way is to make M9 Plus your Main Deco. Connect Satellite M9 Plus to Main M9 Plus and make sure Signal is good...

@nfsanton Open each Satellite Deco page in Deco app and check what it shows under "Connected to:", example: If you see both 2.4GHz and 5GHz bands, like in example, it means both Main and that...

@Murad123 If your Deco mesh connects to ISP Router, you can configure mesh to run in Access Point mode and that will substantially offload Main Deco CPU utilization. Switching a Deco to Access Point...

@Lagman1987 Try this: 1. Find short Ethernet cable, bring Satellite Deco to where Main Deco is, connect them with short Ethernet cable and see if link between them changes to wired; 2. You can use...

@VarunAhuja If firmware upgrade was susccessful for all three Deco units in your Deco mesh, Connection Preference feature should appear in Deco app. This FAQ describes how to use it: How to select a...

@MOHAMMEDKHATEM Sorry, missed that model. Deco S7 is good, too, it is similar to M4 in performance. If you want extra Ethernet port on Main Deco, S7 could be a better choice: it has three gigabit...