20 Mb line, speed issues. [Archive]

bobhawke

24-08-2009, 22:25

Hi, We've been getting consistently poor speeds over the last 2 weeks from our 20 Mb line. Time of day doesn't affect speed, and we're definately not hitting any caps.

I've had a look at some other posts and hope I have included everything relevant for a nice person to peruse my case.

Have completed all tests connected directly to the modem.

https://www.cableforum.co.uk/images/local/2009/08/5.png (http://www.speedtest.net)

Mon, 24 Aug 2009 21:10:38 GMT

Test 1: 1024K took 9364 ms = 109.4 KB/sec, approx 901 Kbps, 0.88 Mbps
Test 2: 1024K took 9270 ms = 110.5 KB/sec, approx 911 Kbps, 0.89 Mbps
Test 3: 1024K took 4361 ms = 234.8 KB/sec, approx 1935 Kbps, 1.89 Mbps
Test 4: 2048K took 19808 ms = 103.4 KB/sec, approx 852 Kbps, 0.83 Mbps

Overall Average Speed = approx 1150 Kbps, 1.12 Mbps

These speeds are consistant with dowloading from http://gamefiles.virginmedia.com/

Power levels:
Downstream Lock : Locked
Downstream Channel Id : 6
Downstream Frequency : 586750000 Hz
Downstream Modulation : QAM64
Downstream Symbol Rate : 6952 Ksym/sec
Downstream Interleave Depth : taps12Increment17
Downstream Receive Power Level : 6.9 dBmV
Downstream SNR : 39.5 dB

Upstream Lock : Locked
Upstream Channel ID : 3
Upstream Frequency : 34000000 Hz
Upstream Modulation : QAM16
Upstream Symbol Rate : 2560 Ksym/sec
Upstream transmit Power Level : 40.5 dBmV
Upstream Mini-Slot Size : 2

Pinging www.bbc.net.uk [212.58.251.195] with 32 bytes of data:
Reply from 212.58.251.195: bytes=32 time=10ms TTL=119
Reply from 212.58.251.195: bytes=32 time=13ms TTL=119
Reply from 212.58.251.195: bytes=32 time=23ms TTL=119
Request timed out.

Ping statistics for 212.58.251.195:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 10ms, Maximum = 23ms, Average = 15ms

Tracing route to www.bbc.net.uk [212.58.251.195]
over a maximum of 30 hops:

1 6 ms 6 ms 11 ms 10.44.128.1
2 14 ms 6 ms 22 ms acto-cam-1a-ge91.network.virginmedia.net [80.2.1
46.45]
3 5 ms 26 ms 33 ms brnt-core-1a-ge-019-0.network.virginmedia.net [1
95.182.181.57]
4 26 ms 14 ms 34 ms bre-bb-a-as0-0.network.virginmedia.net [213.105.
174.245]
5 7 ms 15 ms 10 ms 213.43.163.105
6 16 ms 12 ms 10 ms redb-ic-1-as0-0.network.virginmedia.net [62.253.
185.78]
7 14 ms 10 ms 9 ms 212.58.239.249
8 34 ms 34 ms * 212.58.238.133
9 27 ms 22 ms 10 ms 212.58.239.58
10 * 14 ms 11 ms www-vip.telhc.bbc.co.uk [212.58.251.195]

Trace complete.

Was hoping someone may know what the issue is, or let me know the best way to get results from the tech support. We've only had the connection recently restored (about two months ago) after an outage of well over a week.

Any advice is appreciated.

webcrawler2050

24-08-2009, 22:26

Hi, We've been getting consistently poor speeds over the last 2 weeks from our 20 Mb line. Time of day doesn't affect speed, and we're definately not hitting any caps.

I've had a look at some other posts and hope I have included everything relevant for a nice person to peruse my case.

Have completed all tests connected directly to the modem.

https://www.cableforum.co.uk/images/local/2009/08/5.png (http://www.speedtest.net)

Mon, 24 Aug 2009 21:10:38 GMT

Test 1: 1024K took 9364 ms = 109.4 KB/sec, approx 901 Kbps, 0.88 Mbps
Test 2: 1024K took 9270 ms = 110.5 KB/sec, approx 911 Kbps, 0.89 Mbps
Test 3: 1024K took 4361 ms = 234.8 KB/sec, approx 1935 Kbps, 1.89 Mbps
Test 4: 2048K took 19808 ms = 103.4 KB/sec, approx 852 Kbps, 0.83 Mbps

Overall Average Speed = approx 1150 Kbps, 1.12 Mbps

These speeds are consistant with dowloading from http://gamefiles.virginmedia.com/

Power levels:
Downstream Lock : Locked
Downstream Channel Id : 6
Downstream Frequency : 586750000 Hz
Downstream Modulation : QAM64
Downstream Symbol Rate : 6952 Ksym/sec
Downstream Interleave Depth : taps12Increment17
Downstream Receive Power Level : 6.9 dBmV
Downstream SNR : 39.5 dB

Upstream Lock : Locked
Upstream Channel ID : 3
Upstream Frequency : 34000000 Hz
Upstream Modulation : QAM16
Upstream Symbol Rate : 2560 Ksym/sec
Upstream transmit Power Level : 40.5 dBmV
Upstream Mini-Slot Size : 2

Pinging www.bbc.net.uk [212.58.251.195] with 32 bytes of data:
Reply from 212.58.251.195: bytes=32 time=10ms TTL=119
Reply from 212.58.251.195: bytes=32 time=13ms TTL=119
Reply from 212.58.251.195: bytes=32 time=23ms TTL=119
Request timed out.

Ping statistics for 212.58.251.195:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 10ms, Maximum = 23ms, Average = 15ms

Tracing route to www.bbc.net.uk [212.58.251.195]
over a maximum of 30 hops:

1 6 ms 6 ms 11 ms 10.44.128.1
2 14 ms 6 ms 22 ms acto-cam-1a-ge91.network.virginmedia.net [80.2.1
46.45]
3 5 ms 26 ms 33 ms brnt-core-1a-ge-019-0.network.virginmedia.net [1
95.182.181.57]
4 26 ms 14 ms 34 ms bre-bb-a-as0-0.network.virginmedia.net [213.105.
174.245]
5 7 ms 15 ms 10 ms 213.43.163.105
6 16 ms 12 ms 10 ms redb-ic-1-as0-0.network.virginmedia.net [62.253.
185.78]
7 14 ms 10 ms 9 ms 212.58.239.249
8 34 ms 34 ms * 212.58.238.133
9 27 ms 22 ms 10 ms 212.58.239.58
10 * 14 ms 11 ms www-vip.telhc.bbc.co.uk [212.58.251.195]

Trace complete.

Was hoping someone may know what the issue is, or let me know the best way to get results from the tech support. We've only had the connection recently restored (about two months ago) after an outage of well over a week.

Any advice is appreciated.

Power levels are fine - how are you connected to the VM kit?

bobhawke

24-08-2009, 22:36

Ethernet to the modem.

webcrawler2050

24-08-2009, 22:45

Onboard Ethernet & seperate card?

bobhawke

24-08-2009, 22:54

Onboard - Realtek RTL8168B/8111B Family PCI-E GBE NIC. I get the same issues on multiple pc's aswell as connecting through the mireless router... same speeds.

webcrawler2050

24-08-2009, 23:00

Onboard - Realtek RTL8168B/8111B Family PCI-E GBE NIC. I get the same issues on multiple pc's aswell as connecting through the mireless router... same speeds.

From what I can see, everything looks fine "locally"

There could be some other issues - overloaded UBR etc etc - I would suggest a call to Tech Support (in the day) to avoid india where possible.

bobhawke

25-08-2009, 09:24

Ok, thanks for the help. Is it worthwhile mentioning these tests were done and I got feedback from this forum?

Hazanko

25-08-2009, 21:03

Ok, thanks for the help. Is it worthwhile mentioning these tests were done and I got feedback from this forum?

I've got the same problems but it's Virgin's fault, not ours. It seems that it's problems with the UBR and it's only affecting 20mb users. Maybe you could try downgrading to 10mb and see if that helps. Virgin ain't very good when it comes to dealing with speed problems i'm afraid.

Traduk

26-08-2009, 09:09

I had similar speeds which slowly became worse on my 20Meg line and it turned out to be a corrupted firmware file caused by multiple attempts to migrate the service to file 1.1.

As VM has apparently abandoned attempts at migration I suspect that many modems have been ruined.

Get the tech to plug his\her laptop direct into your modem and get a second line tech to monitor the download. Losses from the modem are indicative of modem failure and a simple change out is the answer. My line parameters also looked perfect and fooled the Indian CS into thinking that all must be OK, which of course it wasn't.

https://www.cableforum.co.uk/images/local/2009/08/3.png (http://www.speedtest.net)