Sorry to possibly cross post but I'm new here and I think I may have raised my query in the wrong place initially.

Basically I joined Sky Max just over a week ago and synced at 8096 with constant speed down of 6.5-6.6 mb (newsgroups and speedtests confirmed). Have had no problems other than that outage last week when lots were affected.

Got home yesterday to find that for some reason I'm now syncing at 6880 and my download speed is now a constant 5.6 (downloading now on a newgroup to test).

Is there any immediate apparent reason why it's been downgraded and is it likely that Sky have done it at their end? Just for info, I migrated from Zen and my line (nearly) always synced at 8128.

Stats are as follows:

/usr/sbin/adslctl: ADSL driver and PHY status
Status: Showtime Channel: INTR, Upstream rate = 768 Kbps, Downstream rate = 6880 Kbps
Link Power State: L0
Mode: G.DMT
Channel: Interleave
Trellis: ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 15.4 13.0
Attn(dB): 30.0 20.0
Pwr(dBm): 19.4 8.7
Max(Kbps): 10144 1216
Rate (Kbps): 6880 768
G.dmt framing
K: 216(0) 25
R: 16 16
S: 1 8
D: 64 8
ADSL2 framing
MSGc: 1 1
B: 254 25
M: 1 8
T: 1 1
R: 12 16
S: 1.0470 8.6153
L: 2040 208
D: 64 8
Counters
SF: 6633299 6633297
SFErr: 7 88
RS: 451064396 56383024
RSCorr: 498841 1398
RSUnCorr: 43 0

HEC: 6 64
OCD: 0 0
LCD: 0 0
Total Cells: 1829793097 0
Data Cells: 20846865 0
Drop Cells: 0
Bit Errors: 0 0

ES: 191 0
SES: 16 0
UAS: 41 0
Total time = 1 days 12 hours 34 min 28 sec
SF = 12824277
CRC = 586
LOS = 16
LOF = 0
ES = 191
Latest 1 day time = 12 hours 34 min 28 sec
SF = 2662812
CRC = 4
LOS = 3
LOF = 0
ES = 5
Latest 15 minutes time = 4 min 28 sec
SF = 15761
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 15 minutes time = 15 min 0 sec
SF = 52989
CRC = 0
LOS = 0
LOF = 0
ES = 0
Previous 1 day time = 24 hours 0 sec
SF = 5080732
CRC = 183
LOS = 5
LOF = 0
ES = 31
15 minutes interval [-30 min to -15 min] time = 15 min 0 sec
SF = 52872
CRC = 0
LOS = 0
LOF = 0
ES = 0
15 minutes interval [-45 min to -30 min] time = 15 min 0 sec
SF = 52989
CRC = 1
LOS = 0
LOF = 0
ES = 1
15 minutes interval [-60 min to -45 min] time = 15 min 0 sec
SF = 52931
CRC = 0
LOS = 0
LOF = 0
ES = 0

Thanks for any input. I don't want to waste a call to sky if it's my problem.