@yakovz One more thing: if you are buying from local retailer and can inspect physical box, it should have Deco X50-POE hardware version on label with bar code, serial number and model name.

@yakovz Deco X50-POE you have is hardware V1. Deco X50-POE with two 2.5gigabit Ethernet ports is hardware V2. Try buying from Amazon, make sure you buy new, sold and shipped by Amazon. I've got mine...

@Hyperfire To make it work, configure Deco mesh to run in Access Point mode: https://community.tp-link.com/en/home/kb/detail/334

@Christoffer_L As a workaround, you can configure Deco to reboot weekly, if you have that option in Deco app: How to configure the Reboot Schedule feature on the Deco

@SpaceMonkey Try this: when Deco mesh is up and running, change it to AP mode and see if it makes Deco mesh stable: Switching a Deco to Access Point (AP) Mode In AP mode Main Deco should be treated...

@carmon When you have single Deco unit it is called Main Deco in TP-Link terminology. Main Deco must have wired (Ethernet) connection to modem/router. What you want is not possible to achieve with...