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ADSL Bandwidth

matl
Dabbler
Posts: 18
Registered: ‎24-10-2014

ADSL Bandwidth

My router currently shows bandwidth up/down as 1,050 / 14,335
With my previous ISP the down figure was typically around 18,000 and very stable. After moving to PlusNet for the first few months it increased to around 19,000 with no noticeable stability problems, but a few weeks ago it fell to the current level.
I had disconnected the router a couple of times and I assumed that this had caused the fall. However my understanding was that a fall for this reason would be temporary and I expected the bandwidth to increase again. This has not happened.
The odd thing is my line seems very stable (the up time is currently 6 days, 16:00:16).
Is there anything that can be done to push the bandwidth back up to the previous level?
Any help would be appreciated.
6 REPLIES
Plusnet Help Team
Plusnet Help Team
Posts: 1,953
Thanks: 22
Fixes: 5
Registered: ‎24-07-2014

Re: ADSL Bandwidth

It's worth posting your full line stats here so that we can take a look for you.
If this post resolved your issue please click the 'This fixed my problem' button
 Tony T
 Plusnet Help Team
matl
Dabbler
Posts: 18
Registered: ‎24-10-2014

Re: ADSL Bandwidth

Thanks for your reply.
I reset the router on Saturday and the following are the stats since then.
Uptime: 2 days, 20:53:01

DSL Type: ITU-T G.992.5

Bandwidth (Up/Down) [kbps/kbps]: 1,106 / 14,335

Data Transferred (Sent/Received) [MB/MB]: 193.88 / 798.72

Output Power (Up/Down) [dBm]: 12.2 / 21.0

Line Attenuation (Up/Down) [dB]: 8.3 / 18.5

SN Margin (Up/Down) [dB]: 5.3 / 12.0

System Vendor ID (Local/Remote): TMMB / ----

Chipset Vendor ID (Local/Remote): BDCM / TSTC

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): -

Error Seconds (Local/Remote): 0 / 0

FEC Errors (Up/Down): 2,438 / 4,815

CRC Errors (Up/Down): 3,163 / 0

HEC Errors (Up/Down): 2,586 / 0
adie:quote
Community Gaffer
Community Gaffer
Posts: 17,667
Thanks: 659
Fixes: 163
Registered: ‎05-04-2007

Re: ADSL Bandwidth

The SNR is higher than I'd expect, the levels of errors on the line don't look particularly high either.
We could try an SNR reset, which will bring the downstream SNR to a target of 6db, this should help increase your speed. It's worth bearing in mind that we can only do an SNR reset once in a 10 day period.
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Staff
Community Gaffer
Community Gaffer
Posts: 17,667
Thanks: 659
Fixes: 163
Registered: ‎05-04-2007

Re: ADSL Bandwidth

I also noticed a banded profile, it looks like at some point in the past your line had a high number of errors which caused this. I've removed the banding, reset the line and you're connecting at 19000 now, giving a profile of 16700.
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Staff
matl
Dabbler
Posts: 18
Registered: ‎24-10-2014

Re: ADSL Bandwidth

Thanks for this. The speed has increased and the connection seems to still be stable. The router stats are now:
Uptime: 1 day, 11:33:05

DSL Type: ITU-T G.992.5

Bandwidth (Up/Down) [kbps/kbps]: 828 / 19,002

Data Transferred (Sent/Received) [MB/GB]: 65.87 / 1.59

Output Power (Up/Down) [dBm]: 12.2 / 20.9

Line Attenuation (Up/Down) [dB]: 8.3 / 18.5

SN Margin (Up/Down) [dB]: 8.7 / 6.1

System Vendor ID (Local/Remote): TMMB / ----

Chipset Vendor ID (Local/Remote): BDCM / TSTC

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): -

Error Seconds (Local/Remote): 1 / 0

FEC Errors (Up/Down): 17,033 / 7,908

CRC Errors (Up/Down): 11 / 2

HEC Errors (Up/Down): 13 / 3
Community Gaffer
Community Gaffer
Posts: 17,667
Thanks: 659
Fixes: 163
Registered: ‎05-04-2007

Re: ADSL Bandwidth

Excellent. Let us know if you have any other queries.
If this post resolved your issue please click the 'This fixed my problem' button
 Chris Parr
 Plusnet Staff