They were in the master socket my isp ISP is EE
I've bought a tp link 8960n which will be coming soon would it be any better?
On kitz for my attenuation I should see speeds of 2.5mb but I only get 2mb
Trial and error - try it and see. No way to forecast really. 2-wire BT business hubs and old v3 Netgear 834 routers might do better on that length of line but it is a case of borrowing or ebaying routers to try them.
The margin may come down to 6 dB if it's stable enough for long enough, or you could try to get EE to reset it but I wouldn't hold my breath.
If it's 20CN MaxDSL you need to get to 2272 or above to get a 2000 IP profile.
MaxDSL - goes as fast as it can and doesn't read the line checker first.