Just to give an update for anyone who has a Deco S7, it was that device all along. After getting another WiFi Mesh set, I got no issues anymore. Why Deco S7 US version latest firmware is from 2024,...

So that didn't work either... I changed the power socket to an expensive electric regulator and had the same issue, same time range. I will buy another WiFi mesh product as a solution. Will update if...

@David-TP Hi, since 3 months ago. I upgraded my Deco M4 set to S7, so I made the process to making the first Deco S7 as the main, and then I replaced the other M4 with another S7. I have to admit...

@ARGamingPK1 thanks for the help, but are you sure it's for US V1? I only see it available for EU: https://www.tp-link.com/en/support/download/deco-s7/v1/#Firmware The file also mentions EU instead...

@ARGamingPK1 Both of them are US, Version 1.

@ARGamingPK1 Reboot schedule has always been off. Also when I click on Update Deco button, it mentions it already has the latest update. How can I download 1.6.1 firmware update?