I got 2 Sineoji PL600EPG adapters and is running at 100M Singtel Fibre. I manage to get 90-100Mb using Speedtest, but recently i upgrade my plan to 300M. To my horror, when i run my Speedtest, it is showing me 90-100Mb!!
No issue with my 300M, coz when i test a direct connection, it give me 300Mb.
It happens when my main adapter is in living room, and the secondary adapter in my bedroom.
The adapter LED lights are all blinking in green.
There is nothing wrong as there is a misconception on the usage of homeplugs adapters.
Homeplug adapters are very dependent on the structure of electrical lines. Different sockets may give rise to different results on speed test.
That socket in your room may have a limitation due to the electrical line for reasons (interference, noise disturbances) despite is showing green in your homeplug. A good way to put it is the socket from your room to your living hall is an expressway with 4 lanes. But for reasons which interference is the common cause, the expressway is narrowed down with 3 lanes. Traffic will still be able to move despite have the speed limit increase from 90 km/h to 150 km/h but it won't help much as that is the bottleneck on that socket.
Take a look at the video below. Speed Test with the pair of Sineoji 600 plugs from the living hall to the bedroom is 115 Mbps download. The Sineoji 600 Plugs is tested on the socket in the dining area, the speed test is 256 Mbps for download. This is under the same electrical network environment within the home. Different sockets within the home will give different results as some may be bad and some may be even better.