Hi, I just invested in EE Fibre Max 1 - Gfast broadband which has speeds of 145mbps download and 25mbps upload.
I had the AV500 kit but as this only had the 100mbps port I thought I would get the TLWPA7510Kit which has the WPA7510 and PA7010 in the box as they had gigabit ethernet connections. 

On the previous powerline i was achieving 87mbps download speed with the new broadband and attributed the loss to the ethernet port, however on the new WPA 7510 I am only achieving 39 - 45 mbps on the connection. No wiring changes. I have tried a lot of things including plugging them in next to each other dual socket to test the speed but this only increased it  by 1-2 mbps maybe. 

Further info the powerline utility shows the overall connection speed to the device as 536mbps and 606mbps the other way. I know this is not the speed I should expect but I would excpect it to be able to carry at least 100mbps?

Can anyone please offer any suggestions as what might be causing this and if it might be a faulty set perhaps?

Thanks for your advice.