@sk1pmcgee You may be having multiple issues with your Deco mesh: Internet speed between Main Deco and Comcast modem, and also location of Satellite X20s might not be optimal - reducing speed on...

DikkieDick wrote Moved a Deco M9 to the second floor and a Deco M5 to the 3rd floor to find out that this Deco M5 kept connecting with the one downstairs giving me lousy speeds. Resetted it, rebooted...

@Will_H587 One of the possibilities is your XBOX configured with static IP address. When you deployed Deco, it runs as a router, with its own IP range of 192.168.68.*. That won't work for XBOX if it...

@Karlom This TP-Link FAQ might help: Adding an additional unit to your TP-Link Deco network Hint #1: Bring attic pod to the room where your Main Deco is (it'll be one at the router, most likely), for...

@Finnegan2567 When I managed to convince ISP there is a problem, they sent technician to my house. He found cracked insulation on TV cable entering my house. That exposed its internals to elements....

@Finnegan2567 Technicolor CGA4234 is indeed router (modem+gateway), not just a cable modem. Because of that, I would recommend switching Deco mesh to Access Point mode. That will not fix Internet...