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Slow upload speed

kreynolds
Grafter
Posts: 433
Registered: ‎05-04-2007

Slow upload speed

Seeing great download speed, however the upload speed is poor.  A bit confused about this.
[quote="detailed router stats"]/usr/sbin/adslctl: ADSL driver and PHY status
Status: Showtime  Channel: FAST, Upstream rate = 585 Kbps, Downstream rate = 8156 Kbps
Link Power State: L0
Mode: ADSL2+
Channel: Fast
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 20.4 14.0
Attn(dB): 31.0 12.0
Pwr(dBm): 14.0 12.4
Max(Kbps): 15760 676
Rate (Kbps): 8156 585
G.dmt framing
K: 127(0) 14
R: 16 16
S: 1 16
D: 64 4
ADSL2 framing
MSGc: 59 95
B: 126 13
M: 1 16
T: 2 1
R: 16 16
S: 0.4963 11.3609
L: 2305 169
D: 64 4
Counters
SF: 18601961 18601959
SFErr: 45 1
RS: 2418254936 79058325
RSCorr: 14322 5
RSUnCorr: 841 0
HEC: 38 0
OCD: 1 0
LCD: 0 0
Total Cells: 1476900610 414600508
Data Cells: 29345587 2290555
Drop Cells: 0
Bit Errors: 0 0
ES: 34 1
SES: 0 0
UAS: 95 20
Total time = 1 days 11 hours 27 min 37 sec
SF  = 18618650
CRC = 45
LOS = 0
LOF = 0
ES  = 34
Latest 1 day time = 11 hours 27 min 37 sec
SF  = 2557782
CRC = 3
LOS = 0
LOF = 0
ES  = 2

Speedtest results
Namesco Broadband Max
http://www.speedtest.bbmax.co.uk/results.php?t=1205001398&v=3771383
Speedtest.net

My broadbandspeed

Normally see an upload speed of around 485
6 REPLIES
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: ‎18-07-2007

Re: Slow upload speed

Hi there,
Were there any other applications running on the PC (or any other PCs on the network) at the time of the speedtest that might have been using the upstream bandwidth? This is the usual cause for slowdowns like this.
kreynolds
Grafter
Posts: 433
Registered: ‎05-04-2007

Re: Slow upload speed

No and firewall was switched off
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: ‎18-07-2007

Re: Slow upload speed

Do you use antivirus? I know it might seem annoying, but trojans will often use the upstream bandwidth and hide themselves and the traffic from the computer itself. If you're not sure if this is the case or not and antivirus isn't picking anything up it might be worth running a wireshark capture to see what traffic is actually going over the interface when the computer is in use.
I realise this may not be the case, checking your usage today there's only been about 100Mb used (though that data is an hour behind)... if you've had the PC on all day then it's unlikely to be a virus as there would be a lot more usage showing. However if you've only just turned the PC on for an hour or so it is a possibility.
Community Veteran
Posts: 26,722
Thanks: 936
Fixes: 10
Registered: ‎10-04-2007

Re: Slow upload speed

I suggest you try closing all programs and then monitor the router to see if there is any significant traffic still going through.
(Just to check the obvious - you haven't downloaded any programs to watch from BBC iPlayer or 4OD have you?)
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£13/month)
Mobile: iD mobile (£4/month)
kreynolds
Grafter
Posts: 433
Registered: ‎05-04-2007

Re: Slow upload speed

@ Orbrey
PC is on 24/7/365 so it is unlikely I have a trojan or virus - currently  running AVG internet security 8
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: ‎18-07-2007

Re: Slow upload speed

Well you're on our LLU service so I can try changing the line profile if you like, it might drop the maximum speed you could get but you should see an improvement in upload speed. Please let me know if you'd like me to do this?