@TP-Link Indeed Ground Floor MODEM -- CABLE -- HEAD DECO MODEM -- CABLE -- NETGEARGS105 -- CABLE -- DECO M9 DECO M9 Wireless First floor DECO M9 Wireless DECO M9 Wireless Should i go from the Ground...

Hi Everyone I have bought 6 times DECO M9PLUS. I have the idea it's not working optimal. May'be it's me not installing it the right way. We have an internet connection 300Mbps down and 30upload and...