@Dzal wired directly from the m9 to the pc or via a switch?

@Saw66 You reset it by running the built in speed test.

@MariusM Yes, reset QoS!

Hi I’m having some serious speed issues with my Deco M9 plus. Until recently I had a 100/100mbit internet line, and all was fine. The Deco app speed check confirmed speeds of 90/90 to 100/100mbit,...