I have the same problem with my 4 units TL-PA4010. They all have power save off and it does not matter the order I plug them (I have one on the router, one on my desktop, one on my PS3, and one...

Can't update the firmware and I am having unstable connection problems. Constantly pinging the router to keep the connection alive seems to solve the problem (but that is not a real solution). I just...