@Pras1011 Each new WiFi protocol offers better speeds in exchange for shorter range and less tolerance for interferences. WiFi 2.4GHz the longest distance reaching protocol. WiFi 5 runs on 5 GHz band...

@the_AAL Promote another Deco to Main Deco and see if problem stays with new Main Deco or moves with old Main Deco. Make sure you move power supply together with Deco unit. If problem moves with old...

@Glesga2014 Also compare prices for Deco S7 and Deco M4 - they are very similar to Deco S4 when it comes to performance. If you prefer more compact form factor, check prices for Deco M5. PS. Whatever...

@tomwoodhouse You should be able to do that, and you will see visible improvement in WiFi speeds. When you connect multiple Deco units with Ethernet cables to ISP modem/router, Deco mesh must run in...

@Rob56 It is a good idea to get UPS. I can't speak for other brands, but APC line of UPS have had very idiotic design, where if APC UPS runs on its power and draw is non-zero but low, then UPS will...

@the_force Another option would be to get the most inexpensive Uninterruptible Power Supply you could find and connect Deco in problematic room through it. UPS will guarantee delivery of standard...