Hello @BabisVlogs
Here is an FAQ that offers some suggestion for
What should I do if connection is not stable when the device is connected to TP-Link Powerline Adapter?
1. Update Powerline device to the latest version
Firmware for TL-WPA7617 : https://www.tp-link.com/support/download/tl-wpa7617-kit/#Firmware
Firmware for TL-PA7017 : https://www.tp-link.com/support/download/tl-pa7017p-kit/#Firmware
2. If the House led/ Powerline Led goes off, this could be due to distance, interferences in the powerline
You could try to relocate the powerline extender unit to somewhere closer the main adapter./ test the TL-PA7017 in the same room.
Try some tips here to exclude some factors which could affect powerline environment.
What can I do if my powerline rate is very low?
3. Disable power save mode as the first instruction.
If still the same, may I know when did you purchase the powerline kit, and how long it has been worked before ?
Please download the tpPLC Utility and share a photo of the powerline rate between the powerline kit.
Can I know the model of router, network topolgy, firmware and hardware of powerline kit. Thanks