Due to some compatibility problem of PHY chipset, some powerline adapters can’t be waked up by some network adapters when the powerline adapters are on standby mode.
The issue mainly happens on TL-PA511v1/TL-PA551v1. It is a pity that this problem can’t be solved by firmware upgrading. We apologize for the inconvenience.
Here we provide a remedial measure, a software to disable the standby feature. It is suitable for all TP-LINK powerline models.

[Operating System]
Windows XP/Vista/7/8

Disable/enable standby feature.

[Beta firmware download link]