Same problem with me, I have installed the new power line utility but it does not find any powerline devices. With this utility not working, these things are not possible anymore: Firmware upgrade...

@Beemer changing dates is a workaround, but I cannot believe that TP Link as a network company is not able to fix this utility, this is software not rocket science, so please TP-Link fix this tool,...

@TP-Link The AV600 powerline adapters are not found by the newer powerline utility. I own 5 AV600 powerline adapters various models, but all have V1 hardware and the utility finds zero adapters. 0...

@StardustOne The powerline utility does not work anymore, it used the discontinued Adobe Flashplayer. A newer version of the powerline utility is available but it does not find any powerline devices....

@JabeSmith Whoa, Windows Defender in Win10 is throwing a warning when trying to start the powerline utility I just downloaded from the provided link. What is going on here? Did you forget to sign...

@Ghorghor Well the P7 uses AV600 and the P9 has AV1000, so from the starting point for AV600 or AV1000 devices, connection speed goes only down, the higher you start, the more you will have at the...