Openreach problem

[Jan8]

After nearly 4 hours of investigating all parts of phone cable to house the openrrach engineer got there and said the line was reading at 67 coming into the house yet the sky broadband hub only gets up to 51mbps. Why is this? 
Before this recent problem we were getting a reading of 57mbps.

[Chrisee]

@Jan8 post your hub's stats and it maybe possible to guess. Fid the engineer check the master socketinside uour home? These can slow speeds down. Bybthecway a 67Mb/sxsync would give a maximum speed test on a device just over 60Mb/s due to network overheads. See Find your Sky Broadband router statistics