@RHSSV Hi, Please put powerline units into the same room, into Wall sockets, and check speed again. Does powerline unit work fine when they are in the same room？ Please make sure firmware on your...

@Wayneh Hello, It looks like 2 powerline units are not paired to each other yet. Please check my reply in your another post: https://community.tp-link.com/en/home/forum/topic/257566

@Th3ry Hi, Please put powerline units into the same room, into Wall sockets, and check speed again. Does powerline unit work fine when they are in the same room？ Please make sure firmware on your...

@Chorlton Hello, Please check if there are electrical devices which have a motor inside them around the powerline adapters. Such equipment can be air-conditioners, washing-machines, electric-fans...

@Airfreak Hi, Please make sure you are using the latest versionTpPLC Utility from tp-link official website first. https://www.tp-link.com/support/download/tl-wpa4220-kit/#Utility From the 7 powerline...

@yui Hi, To isolate the issue, you could test as below: 1> Modem ---C60----Notebook, make sure Notebook can get Internet from C60 by Ethernet cable (turn off WiFi on notebook) If no Internet on...