Hello Support,
I am here to ask for help regarding a malfunction with my new powerline adapters.

I have 3 powerline devices that I am trying to connect to my home network:
- 2 x TL-PA8030P v3
- 1 x TL-WPA8631P v4 fw: 4.0.2 Build 20230817 Rel.58509

My network is provided by a TL-MR600 router.

The anomaly I am experiencing is that I cannot network all three powerline devices and have adequate speed.
As long as TL-WPA8631P and ONE of TL-PA8030P remains connected, the speed remains very high.

If I connect the second TL-PA8030P this one presents a ridiculous 11 Mbps speed.

As you can see from the pictures, the powerline with high speed is the one connected close to the router (and connected via LAN to the router).
The second powerline, on the other hand, has 11 Mbps speed whether it is connected near or far from the router.
I also ran the test by reversing the positions of the devices and got the same result.

Pairing was performed using the “pair” button on all the devices, one at a time.

Do you have any ideas as to whether I am doing something wrong? Could there be some incompatibility between the devices?

Thank you very much.