Thanks for your call on Tuesday. All seems to be working well now following the engineers visit. I have continued to test from time to time and am getting around 60Mbs down 17.5Mbs up via ethernet. WiFi is far less impressive but that is more likely to be something for me to investigate further (I can't get much above 20 download standing a few meters away and previously managed 50/60 from a PC 2 floors and some distance away).
I will continue to monitor and test for a few days before starting to troubleshoot the wifi settings but am fairly satisfied the issue has been resolved. Many thanks for your help which was extremely professional, helpful and lead to a successful resolution!
For those interested, the engineer confirmed by wiring was abolsutely fine but he detected higher resistence on the line than would otherwise be considered acceptable. He checked out connectivity at the last pole before the house and two further "down stream" and also spent sometime at the cabinet near the exchange; not sure what he did but he was up one pole for quite some time! I (vaguely) recall another engineer being at the same pole earlier this year connecting a new neighbour. Perhaps there was a knock on effect or it was something totally unrelated - know knows (or cares)...
Only 20Mbps download via wireless would suggest a wireless g network adapter. Connection via wireless g standard will only give throughout of 20 - 25 Mbps.
Thank you for taking my call. I'm happy to hear the connection has been repaired following the engineers visit. I tested the connection and its looking pretty good. I can see the last speed test you achieved just over 60 Mbps, which is good to see