I have a question about Ethernet over Power (EoP.)

Hello

I recently bought a pair of EoP adapters. These are TP-Link AV500 units and they are rated with a 300 meter range over power lines.

I have them working fine in my house, in fact they work on all 3 power phases which is encouraging.

But when I try them 100 meters apart the Ethernet status tells me that the "ethernet is connected but it has a SELF-ASSIGNED IP address and cannot connect to the internet.

For those of you who are about to mention circuit breaker, meter, other electrical equipment interference, I confirm that the connection 100 meters apart has none of these issues, I have made the connections at each clean end of a heavy duty underground power line between two buildings, on the same side of a single meter and on the mains side of any breakers etc. in switchboards.

So I feel that the key to this problem is the 'self-assigned' IP address. Can I override or circumvent this? Can I put in a manual IP address that will pick up the ethernet over this distance (and it seems that distance is one issue.)

The makers of the TP-Link units assure me that these units have been tested to work up to 300 metres

But mine doe not...unless I can get some assistance with this problem

Regards

Bruce