I am experiencing a reproducible issue with TP-Link TL-PA4020P powerline adapters and would like to ask whether others have seen similar behavior or found a solution.

Setup and symptoms:

• New electrical installation

• One single RCD/FI (30 mA), always the same one trips

• Powerline model: TL-PA4020P

• No Wi-Fi extenders, no pass-through socket usage

• No devices connected to the pass-through socket

• The powerline adapter is plugged directly into a wall outlet

• No other changes in the installation

Observed behavior:

• When the powerline adapters are connected, the RCD trips sporadically after several days

• When all powerline adapters are removed, the system runs for two weeks without a single RCD trip

• This clearly identifies the powerline adapters as the trigger

• The issue persists even when no other devices are connected downstream

Questions:

1. Are there known cases where TL-PA4020P / HomePlug AV adapters cause RCD/FI tripping due to leakage currents or HF coupling?

2. Are newer TP-Link models (e.g. AV1000 / AV2) known to behave better in this regard?

3. Does TP-Link recommend specific models or configurations for installations with sensitive RCDs?

4. Would changing to another TP-Link powerline generation realistically reduce this problem?

I am not looking for high bandwidth; stability and electrical compatibility with an RCD-protected installation are the priority.

Any experience, confirmation, or guidance would be appreciated.

Thank you.