@19_pc_85 You said your ISP provided you with the router. With Deco mesh, there are multiple parameters which could imact speed, both wired and wireless. Instead of trying to figure which one is the...

@Jorn-H This is how I understand your problem description: after restart, Main Deco runs at full speed, then after some time link speed gets downgraded to 100Mbps. You ask if there is a setting that...

@Jorn-H You should replace Ethernet cable connecting Main Deco to TP-link ER605. Also, TP-link ER605 is Omada, does it not have Web page that reports its Ethernet ports negotiated speed? Check what...

@Gravoren You got it right now. Good luck with everything. To recap benefits of dedicated wiring: 1. Each Deco node runs independently as it serves only users connected to it. That delivers maximum...

@I_sakac You can use two for Ethernet backhaul.

@Acampm This problematic Deco, open its page in Deco app and see what it reports there under the "Connected to." Example: If you don't see 2.4GHz/5GHz but only 2.4GHz, that could mean hardware...