that's not helpful at all... The TL-PA211 devices don't have hard reset buttons. The only buttons they have is the pair button. You can only reset them by connecting them to the computer, opening the utility software and then clicking reset in there however, as the OP stated, the utility isn't picking them up. And your other info isn't exactly user friendly for a "computer novice"... I also a novice and I have no idea what you wanted me to do with that second piece of advice...
Anyway, the reason I'm here is because the TL-PA211 device that is at my computer (...at the moment. it's always the same device that messes up) is on standby and I can't get it off standby. The utility doesn't pick anything up, pairing doesn't work, witching the devices doesn't work and when I replug it then the lights just flash (all 3 of them) rapidly... until eventually it goes onto standby. The rapid flashing isn't in any guide i've found yet which is would gives me the suspicion that it's broken... Is there any way of fixing it or have I wasted £30?
Extra info: They have worked on and off for the past week. After much strife I had them working for a full night at one point but the next day I came home and they weren't working. I simply unplugged the faulty one and then plugged it in again and it worked until late that night... It's been 2 days since then and nothing seems to work...
In case you haven't noticed, this is really beginning to frustrate me. I just want internet but I feel like i've been scammed!