@TP-Link There seemed to be a huge difference in speed from the main Deco. Or was the speed 800/900 down with 200 up is only referred to ISP modem? Not sure, I was tweaking on ISP router...

@TP-Link Right, let's break it down. There is 800-900 m/s download, 200m/s upload from main Deco via Ethernet connection, right? Correct, if I connect directly on the main deco via ethernet (5e), It...

@ImtiazAli Right. Small parts, I have no idea what I'm doing btw, so please bear in mind my noobiness regarding network. x) Yes, M4 & M4R are the same. Great. One less thing to worry about. You're...

My ISP speed is 1Gb, If I connect directly on the router (using 5e cable) I get around 850~980 for download and around 200 for uploads. Great. If I connect my Main M4(AC1200) to my ISP router, then...