@jacktiew The screenshot in the #1 post is not helpful. All your Deco nodes broadcast on the same channel, of course it will appear congested. Even if you can change Deco WiFi channel manually, the...

@ezlifeme At my house, I have Deco mesh with four units: two M9 Plus and two M5. Three out of four Deco units are connected with Ethernet cables to my home network. After reading that document I...

@tpbuddha It is possible your Main Deco experienced hardware failure. To verify that, swap it with another Deco you have. To do that, you must make that another Deco your Main Deco. How to switch...

@jacktiew On picture you shared, how many of these are your Deco units broadcasting on same channel? For WiFi channels congestion reporting try WiFiMan app from Ubiquiti, it can show WiFi networks in...

@ezlifeme Yes, you can do that, but check this document for helpful info: General questions about Ethernet Backhaul feature on your Deco

@aide199 It is possible, then, that these web sites are blocked by your ISP or by your ISP router. You tested VPN and cellular network, but you haven't said if these web sites are accessible when...