@UncleEddy Follow up question: is it too late to return M9 set? It is good mesh (when it works), I have it and I will keep mine. Yet, you are not using best M9 feature, which is dedicated wireless...

@UncleEddy I absolutely did not expect that. I wonder if you have defective Deco set. Under normal circumstances, Deco should run just fine with 5GHz only, and this is how I run my Deco mesh with M9...

@UncleEddy You tested wired speed through problematic Deco, so we can dismiss Ethernet wiring as an issue. Few other tests I would suggest, to check if there still might be something wrong with your...

SDEVA wrote I do see it on the Deco App in the Network but I do not see My Cloud on the My Computer Network!! That is precisely the problem!! @SDEVA If you see My Cloud device in Deco app, it usually...

@UncleEddy Can you clarify one thing: the wireless speed through problematic Deco, was it also under 10mbps before you increased your Internet speed or was it up to 100mbps? The point of this...

@Alex. If you plan to run Deco M9 Plus in Router mode, here is the answer from TP-Link Support: https://community.tp-link.com/en/home/forum/topic/207382