Well the background to this is that I upgraded from 2 meg to 10 meg recently, and since then I've been getting utterly rubbish speeds, especially in the evenings. I'm getting about 1.5mbit/sec on Speedtest.net's tests, and about 0.5mbit/sec on VM's 50 meg speed test. It's OK in the mornings (before 12pm) but from then on it just goes downhill and stays crap until well past midnight.
Code:
Download #5
------------------------------------------------------------------
File size transferred : 10.0 MB (10485760 bytes)
Total time taken : 162.53 seconds (162531 milliseconds)
Throughput : 64.0 KB/sec [Kilobyte-per-second]
= 0.06 MB/sec [Megabyte-per-second]
= 512.0 Kbps [Kilobit-per-second]
= 0.51 Mbps [Megabit-per-second]
Download #6
------------------------------------------------------------------
File size transferred : 10.0 MB (10485760 bytes)
Total time taken : 155.41 seconds (155409 milliseconds)
Throughput : 67.0 KB/sec [Kilobyte-per-second]
= 0.07 MB/sec [Megabyte-per-second]
= 536.0 Kbps [Kilobit-per-second]
= 0.54 Mbps [Megabit-per-second]
Download #7
------------------------------------------------------------------
File size transferred : 10.0 MB (10485760 bytes)
Total time taken : 143.6 seconds (143601 milliseconds)
Throughput : 73.0 KB/sec [Kilobyte-per-second]
= 0.07 MB/sec [Megabyte-per-second]
= 584.0 Kbps [Kilobit-per-second]
= 0.58 Mbps [Megabit-per-second]
Download #8
------------------------------------------------------------------
File size transferred : 10.0 MB (10485760 bytes)
Total time taken : 163.89 seconds (163894 milliseconds)
Throughput : 63.0 KB/sec [Kilobyte-per-second]
= 0.06 MB/sec [Megabyte-per-second]
= 504.0 Kbps [Kilobit-per-second]
= 0.5 Mbps [Megabit-per-second]
I'm definately not STM'd, as can be seen from both the upload speed, and the fact that I get about 3.5mbit/sec with ten concurrent connections. Web browsing is horrendously slow, and downloads usually go at around 0.3-0.5mbit/sec from various sites, including my university whose network has a direct peering with VM.
Traceroute suggests that the congestion is at the most local part of the network:
Code:
1 <1 ms 1 ms 1 ms 192.168.1.1
2 56 ms 57 ms 57 ms 10.123.192.1
3 52 ms * 136 ms 62-31-64-41.cable.ubr06.brad.blueyonder.co.uk [6.31.64.41]
4 40 ms 34 ms 41 ms lee-bb-b-ge-300-0.network.virginmedia.net [195.12.178.94]
5 40 ms 38 ms 29 ms nth-bb-a-as0-0.network.virginmedia.net [213.105.75.133]
6 41 ms 42 ms 39 ms nth-bb-b-ae0-0.network.virginmedia.net [62.253.15.118]
7 53 ms * 70 ms tele-ic-1-as0-0.network.virginmedia.net [62.253.184.2]
...etc
Last I recall the first hop should be around 6-8ms, and no more than 10ms, but as you can see it's hitting over 50. No difference when the machine is connected directly to the modem and/or when the modem is restarted, etc. etc.
Now, the problem is VM is refusing to do anything about it. They won't speak to me, because I am not the account holder (the landlord's boyfriend is). They won't speak to him, because he doesn't live here and can't be here to test it out on the phone with them. Given that there is definately a problem here, is there anything anyone could suggest to get this damn thing fixed? The problems seem to coincide/alleviate with the students returning to this part of town for the start of term so it would suggest that it's a chronically oversubscribed UBR or something. Why I'm on "cable.ubr06.brad" is beyond me though, I'm in Edinburgh...
Thanks in advance for any help.
[Edit]
Thought I should add, modem's stats seem perfectly fine, though correct me if I'm wrong
Code:
Downstream Channel
The data shown in the table below provides information about the signal coming from the network to your cable modem.
Downstream Status
Operational Channel ID
0 Downstream Frequency
331000000 Hz Modulation
256QAM Bit Rate
10240000 bits/sec Power Level
13.9 dBmV Signal to Noise Ratio
37.2 dB Upstream Channel
The data shown in the table below provides information about the signal being transmitted to the network from your cable modem.
Upstream Status
Operational Channel ID
2 Upstream Frequency
22200000 Hz Modulation
16QAM Bit Rate
512000 bits/sec Power Level
32.0 dBmV