@JackFrost Hello, could you please provide more information about the current issue? The powerline environment does affect the performance of the TL-WPA4220; for the environment itself, there is not...

@Hau Hello, how many floors in total? Generally speaking, it is suggested to use powerline adapters under the same power circuit due to potential powerline noises; If you have purchased it already,...

@markoto Thanks for your valued reply. For the wired speed, it is suggested to change another ethernet cable, like cat5e or above; then you can test the speed. Please ensure that the client connected...

@elisabettasc Hello, please read this article to get some details. https://community.tp-link.com/en/home/stories/detail/1200 May it help.

@tcc Thanks for your update. Glad to hear that you figured it out. If possible, could you please take a screenshot of the MAC address filtering settings page and send it to us? Then we can do further...

@thidar You are very welcome. You can take more time to test its performance. Any updates, be free to let us know. Good day.