@Nick_CY The latest Deco X50 firmware for hardware V1 is 1.5, from the link I provided. If you don't see it in Update Deco page, you will have to do manual update. For update, use firmware from link...

@RedT25 Yes, using LAN cable will make it more stable and better than connecting PlayStation wirelessly. Also, you should not be buying Deco E4 if your Internet link speed is faster than 100Mbps. It...

@Nick_CY Here is the thing: if it were just WiFi interference, you should have had excellent wired ping. If it were problematic Ethernet cable, you should have continued getting same bad pings from...

@Nick_CY Screenshots say everything is OK and link between two Deco units is good. Do you have device with Ethernet port you can hardwire to Main Deco and run pings from that device?

@Nick_CY Yes, this is ugly. Deco mesh can do better, especially in AP mode. To help me understand what you have, make screenshots of "Show Map" and "Show List" pages in Deco app and share them here....

@Smokes Your Satellite Deco (Sleepout) is too far fom Main Deco, it can't establish good WiFi link to Main Deco. You should move Satellite Deco closer to Main Deco. In Deco app, open Satellite Deco...