@TP-Link 

I'm on verizon fios and I currently have a deco m9 plus connected directly to the fios ONT (G-211M-C). Here is how I currently have it set up: 

the m9 deco is directly connected to the verizon ONT. I have an ethernet cable from the m9 deco to the x3600 at the other end of the house. I have a m9 deco on the 1st floor and a separate x3600 on the 2nd floor. This set up works like 90%. It looks like when there is a large download or upload, the x3600s would both disconnect but the m9 decos would still remain online. The m9 decos remain green but the two x3600 would be red when this happens. After a few minutes, the two x3600 would then be connected again with the green led.

                 |---------------------------------------------------------------------------------------------------------------------------------------------------------------------   

second fl   |    x3600 (wireless)             |                                               |                                         |                                                                |

                 |---------------------------------------------------------------------------------------------------------------------------------------------------------------------

first floor   |                                                                                                         M9 Deco (wireless)

                 |---------------------------------------------------------------------------------------------------------------------------------------------------------------------

basement | verizon ONT ---> m9 deco  |                                             |                                          |                                  x3600 (1)              |                       

                                               ethernet  <------------------------------------------------------------------------------------------------------------>

  @Chrisx68 

I have also been experiencing drops from the X68 periodically. It seems like almost every afternoon while working from home I lose internet connection briefly. I also have occasional issues with the wifi on my TV that is in the next room from x68 tower. At first I started thinking it was work that was dropping in the afternoon but when my TV started having issues I suspected it was the x68. I have only owned it for a little over 3 months and at first it was awesome. With a 1G ISP line, I thought this would be a great upgrade. I had an old Google WiFi and never had a problem with drops and my wifi TV never had an issue. I hope tp-link has a solution for this. I hope there is a firmware upgrade or something that will fix this issue. This product has some much potential but the occasional drops are really bad especially when trying to work from home.  I don't always get the red indicator light. It will show green but the wifi will fluctuate all the way from 1G down to 117M with me sitting in the same spot and not moving. It is starting to occur more frequently like almost every afternoon when I am working from home.