I have been through this loop many times with all kinds of proposed solutions, submission of topology and hours of to-ing and fro-ing with the Deco folks. It turned out that the issues weren't with...

@TP-Link Hi, on average, I have 13 wired connections and around 20 on WiFi. I no not have another Router. Thanks

@pdeseymour Still no response. I am rapidly losing confidence in this product and reporting progress. It shouldn't be up to "the luck of the draw" in a forum to get technical support.

@pdeseymour Deco team, It took some time to provide the information you requested but I have heard nothing. David

@TP-Link_Deco Hi, I'll address your points: 1) you are correct in your summary. AS requested, the topology is as follows: 2) I have enabled and disabled the Advanced feature but they had no effect....

@pdeseymour Over two weeks ago, I provided the required information but have still heard nothing. I now have a situation where the wi-fi at all of the five stations drops to 50mb. This has to be...