Had 3x M4 since March(WFM) and generally happy with it, had one of the unit in my home office(no backhaul) hardwire to my PCs and printer. There is a strange behavior on speed, let say I ran a random speed test the inital speed is always 20ish mbps run it again low 200 mbps. I make aware of this because every once in a while I will notice a lag in my RDP, and that happen once every 2day or so.
I feel like M4 have a eco mode that throttle my speed when it isn't needed and speed test(I use Network speed test from MS store and bing test) wake them up back to normal.
Any thought on this?