So at random times (a lot) my ethernet is really slow, I really don't know why, I have a Devolo 500+ Duo. My brother who has a worse ethernet box doesn't have this random laggs. I was wondering what I can do to fix this, what things I have to check to make sure everything is working etc...
Could it be possible that it's my wall socket?
Have you tried different outlets, on both sides? Are you plugged into a power strip, or directly into the wall outlet? Powerline adapters do not function well (if at all) if plugged into a power strip.
Have you checked out the software and firmware for those adapters? They have a recent firmware update available, from August 2014.
I have the most recent update, my Devolo that is connected to my router/modem is connected to a power strip and so is the powerline adapter of my brother. The devolo device in my room is connected to the wall, but I have not yet tried a different socket.
Do you think that if I connect the Devolo device ,that is connected to my modem/router, to a wall instead of a power strip it would fix the problem?