During the 10 day stabilisation period, my sync speeds gradually increased to around 5300 kbps with download speeds around 4600. Now the period is over, download speeds have slowed to a crawl. In fact it's almost impossible to get on to any speed checker site, but managed one this morning which showed 0.30 kbsec.
When I was with zen I had a more or less continuous sync speed or around 4800 kbps, with download speeds of around 4000, with these sort of line stats:
Modulation: G.992.3 Annex A
Latency type: Fast
Noise margin (Down/Up): 6.1 dB / 6.7 dB
Line attenuation (Down/Up): 50.0 dB / 29.9 dB
Output power (Down/Up): 0.0 dBm / 12.6 dBm
FEC Events (Down/Up): 0 / 0
CRC Events (Down/Up): 16298 / 3
I'll try another router later and possibly another BT socket faceplate. Telephone support is farcical, with them ultimately saying I should wait for 28 days before the connection is stable.
Edited by Aliturk (Wed 23-Nov-11 13:32:55)