@Hedobum  With the issue happening with only the Amazon Echoes, I would suspect a compatibility issue, for lack of a better term, between the Echoes and the APs.  There may be a simple fix worth pursuing, especially if you are satisfied with the rest of the networks performance.  Maybe check for firmware updates on the Echoes.

Having said that.....not to be a Debbie downer but... here it goes anyway. 

I built a full TPLink Omada Network for our RV Park, which is very straight forward, and I have had nothing but trouble. Nothing works as expected. In a smaller network it may not be a problem. The network I built is not large by any means. Its an OC200, TL-SG2210MP Switch, Root EAP610-OD with 4 Meshed EAP225-OD, each 225 linked to the EAP610. When its working its not bad but nothing to write home about either. If anything happens that requires a reboot, its a roll of the dice whether the network will come back up normally. Something as simple as adding one 2.4ghz SSID to the wireless network, that had nothing to do with the MESH, sent all of the APs into isolation and it took hard resets to get them back. I literally start drinking each time it comes close for monthly reboot. Sometimes I skip it if things are going ok.

If you are within the return window of the hardware I would return it. I live in the RV Park  where I built the network, and the performance and reliability concern was enough that I installed my own wireless hardware to bypass TPlink Wireless. It cost more but has operated flawlessly with superior performance and I have not had to touch it since initial install.

Thanks for the reply. 

I am certainly familiar with the havoc new radios & radiation patterns can create.  This isn't isolated to a single device, this is ALL of them.  They don't disconnect together, either.  They disconnect one at a time, every few days until all 15 of them have disappeared and won't reconnect unless I factory reset them and re-add them to the app.

 

This is an incompatibility with something TP-Link is doing, which is god knows what.  I guess I'm going to have to rip it all out & give another vendor a try.  I've turned off everything from band steering to fast roaming & 11k, its as basic a configuration as I can imagine at this point.  

I saw someone suggest that removing the controller solved their issue, but that would create roaming issues for me so that idea...not my favorite.  

Does anyone from TP-Link view these forums?

  @Hedobum The chime in now and then but I never expect a response directly from them. If you go to the support section of the tp-link.com for your region, there is usually a CHAT at bottom right. I have always gotten a response there, although I think they are in a different time zone so the response is usually later.

By chance do you have the Force-Disassociation option checked under roaming options? If so try disabling that and see what results you get. I had that enabled at one point and clients were dropping and not reconnecting.