My connection has been very problematic these past several days. I called BT at the weekend and spoke to a truly excellent first line technician. He said he saw issues with my line and was going to escalate it to 2nd line. Another 1st line technician called me on Monday and she was utterly
****. A third technician called me today and decided that my case was worthy of a visit next week. I asked if I could visit the BT offices and pick up a Homehub and microfilters to test and he said yes, so I visited and was given short shrift.

At least I got some exercise.
This is my current line status:
Line state: Connected
Connection time: 0 day, 01:45:14
Downstream: 16,001 Kbps
Upstream: 888 Kbps
ADSL settings
VPI/VCI: 0/38
Type: PPPoA
Modulation: G.992.5 Annex A
Latency type: Interleaved
Noise margin (Down/Up): 3.1 dB / 6.1 dB
Line attenuation (Down/Up): 30.5 dB / 16.4 dB
Output power (Down/Up): 0.0 dBm / 12.1 dBm
FEC Events (Down/Up): 304385 / 5
CRC Events (Down/Up): 100 / 0
Loss of Framing (Local/Remote): 0 / 0
Loss of Signal (Local/Remote): 0 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
HEC Errors (Down/Up): 1791 / 0
Error Seconds (Local/Remote): 0 / 0
Note the connection time!
Hopefully they'll decide to rewire me to the local cabinet rather than the exchange so I can have Infinity.