Hello there, Blinky.
Welcome to the Three Community.
It's not entirely clear what would be causing that. It could be Wifi related, are you able to connect a device to the Eero to test its speed over ethernet? If so, you could wait until the next time it slows down, and run a test with a device plugged in as well.
Pete.
Mod tip! The author of a post can hit 'Accept as Solution', to highlight a reply that helped solved their query.
