my line speed has halved to ADSL speed in a week

Hi Guys
I have "superfast Broadband" fttc but cabinet is a mile away. I always previously got a rubbish 12-15 meg download and just under 1 meg up.
In the last week or so this has dropped to 5 meg down and 0.6 up - I used to get more than this on ADSL.
my stats are as follows.
TCM(Trellis Coded Modulation)
On

On
SNR
9.2 dB

6.5 dB
Line Attenuation
27.4 dB

12.8 dB
Path Mode
Interleaved

Interleaved
Interleave Depth
661

23
Data Rate
9999 kbps

921 kbps
MAX Rate
21388 kbps

1137 kbps
POWER
9.6 dbm

0.4 dbm
INP
2.3 symbols

2.6 symbols
CRC
0

0
VDSL Band Status
U0 D1 U1 D2 U2 D3 U3 D4 U4
Line Attenuation (dB)
12.8

27.4

-

78.4

-

95.9

Signal Attenuation (dB)
12.8

58.3


SNR Margin (dB)
6.5

8.9
Many thanks
K

Edited by keymaster (Sun 27-Nov-16 17:45:19)

Having trouble figuring out which are the connection speeds and the max speeds.

Can you confirm the actual connection speed figures, think it may

Connection Speed 9999 Kbps down and 921 Kbps up
Max Rate 21388 Kbps down and 1137 Kbps up

The Max is still showing the old figures, but looks as if the line may have been banded, i.e. Openreach DLM fixing maximum speed to stop line flapping around. Without a set of previous U? D? band figures hard to say if the line has got worse or not.

Hi
thank you for reply
router details

Edited by keymaster (Mon 28-Nov-16 11:28:26)

Hi
Thank you, I previously had 14meg ish down with a synch of 15 or 16meg - now I am getting 5-6meg,
I am on Cromer cabinet 5 but I am a mile away from cabinet.
I previously got 6meg sometimes 7meg on ADSL.
Thank you
K

With 9999 Kbps sync you should be able to get 9.5 Mbps speed tests, so if tests are still well below that suggests maybe seeing a fair few errors, which would also be supported by the way it seems that banding has been applied.

Thank you
I will use this information when I speak to ISP tomorrow.
K