Very low download speeds.

[#1]

Hi there, since moving to Plusnet I've noticed that my download speeds have been very very low, during the daytime I'm lucky to be getting more than 1.5Mb/s
Here's my most recent speed test.

I'm on the Plusnet Pro package and although for gaming Plusnet been an absolute godsend, these speeds are much much lower than I was receiving with my previous ISP in regards to browsing/downloads.
My router is successfully syncing at 448 / 8,128

[#2]

you got your mtu an rwin setup right.
did you change routers when moving to plusnet?
also can you post your line stats
http://www.kitz.co.uk/adsl/frogstats.php
and your bt an PN profile http://speedtester.bt.com/ and https://portal.plus.net/my.html?action=data_transfer_speed

[#3]

Using the Thomson router supplied by Plusnet, however it is the same model as the router I was using previously.
My MTU is at 1492 and my RWIN is 255552, these are the numbers I was using with my previous provider, Tiscali, and have remained unchanged.
I should note that between 00:00 and 08:00 when I use BitTorrent in order to take advantage of the unmetered access, download speed generally seems fine and is certainly much much higher than the numbers I'm getting during the evening.
Uptime: 1 day, 21:00:40
DSL Type: G.992.1 annex A
Bandwidth (Up/Down) [kbps/kbps]: 448 / 8,128
Data Transferred (Sent/Received) [kB/kB]: 0.00 / 0.00
Output Power (Up/Down) [dBm]: 11.5 / 19.5
Line Attenuation (Up/Down) [dB]: 17.5 / 27.0
SN Margin (Up/Down) [dB]: 27.0 / 9.0
Vendor ID (Local/Remote): TMMB / TSTC
Loss of Framing (Local/Remote): 2 / 0
Loss of Signal (Local/Remote): 2 / 0
Loss of Power (Local/Remote): 0 / 0
Loss of Link (Remote): 0
Error Seconds (Local/Remote): 103 / 0
FEC Errors (Up/Down): 0 / 0
CRC Errors (Up/Down): 0 / 367
HEC Errors (Up/Down): 0 / 239
----------
Telephone number:
    01463xxxxxx
Phone exchange:
    INVERNESS MACDHUI
Estimated line speed:
    8 Mbps - Checked on 2009-05-12 22:03:11
Current line speed:
    7150
----------
Having trouble with getting the BT Speedtester to work at the moment.

[#4]

http://www.plus.net/support/broadband/quality_broadband/speed.shtml
did you not know about the traffic mangment on p2p. your web browsing and speedtest results should be fine tho
edit
forget that your on pro
what are your IP profiles?

[#5]

The only IP profile I can find is 7150
I should also add that although my download speeds seem abnormally slow, my overall throughput seems to be phenomenal, I've been in 100+ player Wintergrasp battles in World of Warcraft at various times of day, with a latency rarely exceeding 90ms. So no issues there
It's just a bit of an annoyance when I often have to wait on overly long amount of time between web pages while surfing.

[#6]

pn's profile on the link i gave is under current speed
didnt see your edit.
yeah the BT one gets busy messages at peak times

[#7]

That profile is matched on your account. Do you get any different results on any other speed testers - www.thinkbroadband.com or www.mybroadbandspeed.co.uk ?

[#8]

Think Broadband
MyBroadbandSpeed

[#9]

Could you try a wireshark capture if you haven't already, please? I need to check the profile on the line which I'll do in the morning but we should find out more from the wireshark dump. There's details on how to do the capture at http://www.plus.net/support/broadband/troubleshooting/wireshark.shtml - sorry about the slow speeds.

[#10]

i was going to surgest wireshark but didnt wnat another comms cartoon done on me 

[#11]

Wireshark Report

[#12]

Morning,
That capture shows your web traffic in Gold, which is normal.
I'm concerned that your rWin seems rather high.  Can you try using a figure of 111200 with an MTU of 1430 on both your computer and router?

[#13]

Checked the speed of my connection this morning and i'm getting results in the 6Mb region which is far more like it I guess it's just down to congestion at peak times or a hiccup somewhere. I'll give it another week or so and see if there's any pattern in regards to the slowdown.
Just out of curiosity, how do I go about changing the RWIN and MTU of the Thomson TG585 that Plusnet supplied?

[#14]

You'll need to change the rWin using: http://www.dslreports.com/drtcp
I'm not entirely sure where you change the MTU on the router itself but I'm sure someone will be along shortly to let you know

[#15]

You need to Telnet into the router and then use a CLI command - it has been covered before but as usual the search doesn't work
http://forum.zensupport.co.uk/thread/18173.aspx tells you how to do it