@Kaminsk13 

Hi, Normally, it does not need additional settings on the main router to allow Deco to work as an access point.

Have you ever seen Deco M5 turn red when the internet connection dropped?

If currently, you are using the same SSID on both Fios and Deco, it is suggested to change a different SSID for M5 in case the disconnection is caused by the roaming.

 If possible, please help me run a simple test:

 1. temporary switch Deco back to wireless router mode to check whether the same issue continued.

 Thank you very much.

@Kaminsk13 

Hi,

It is suggested to connect some of the devices to the Deco’s network, others to Verizon in case the disconnection is caused by that devices kept switching from different Wi-Fi.

At the same time, I would like to forward your case to the senior engineers, and please have a check of your email box.

As for your network topology, did all 4*Deco M5 connect to the LAN ports of Verizon, or only the main Deco wired to the Verizon router, the others wirelessly connected?

Thank you very much.

@Kaminsk13 

Thank you very much and Did you get the email from TP-Link?

If yes, the case has been forwarded to the senior engineers, and please check the email for further assistance.