@Acorn50 I can give you recommendations for household Deco hardware. Outdoor WiFi range extenders, boosters and access points is not my area of expertise. I'll start with the summary of what I can...

@lasseedsvik According to documentation, WPS should work with any Deco unit, not just with Main Deco. What you have found may be a bug, and you have also found a workaround.

@lasseedsvik What you are saying is you tried WPS with Satellite Deco and it failed. You tried WPS with Main Deco and it were successful. This is good info for other folks who may need help with WPS...

@JayLzz For house that size, I'll start with two WiFi mesh units per floor. If coverage is not sufficient, I'll add more WiFi units where needed. This applies to any brand of WiFi mesh, not just...

@Acorn50 You may wish to also check outdoor access points and/or WiFi boosters. Not necessarily from TP-Link. For regular household TP-Link Deco units, their Operating Temperature: 0℃~40℃ (32℉...

@vijaykandaswamy This is how you can do that: 1. Add new X95s to existent M9 mesh as Satellite Deco; 2. Promote one of Satellite X95 to Main Deco: Changing the Main Unit for your Mesh Network 3....