@Cornishman This seem to be the different issue from original you had. Next time it happens, power off Vimin switch that is connected to Main Deco and see if Main Deco will recover by itself,...

@FTTP Follow this link: https://www.tp-link.com/uk/support/download/deco-be65/ Choose the hardware version (V1 or V2) Click on Firmware button just below on that same page You'll see latest firmware...

@David-TP Hi, TP-Link Support (and everyone). I have an issue with new deployment of set of Deco X50-PoE V2 firmware 1.4.4. This is in place deployment, replacing M9 Plus and M5 on the same network...

@anurag24 It is possible your ISP Router does not support Deco Ethernet backhaul, it is also possible Ethernet cable you use has issues. Take Satellite Deco with its Ethernet cable connected to...

@DAWO57 There is no meaningful difference between X50 and X55, if going with these just pick one that costs less (or on sale). No sure how to define "stable and reliable", but I recently upgraded my...

@YahyaKm Firmware upgrade is standard recommendation, so my answer is: yes, you should. I would also suggest to swap two Satellites. Remove them from Deco mesh, swap units with their power supplies,...