is this acceptable...?

[Martie07]

Okay, past few months i have been having realy big issues with my upload speeds and packetloss. i recently contacted Virgin, and they said there is a problem with SNR on my UBR. they did fix it the other night, they changed my downstream channel to 6, and my upstream to 1. I just rebooted my modem and now my modem's channels are set back to channel 6 down, channel 3 up.

Name WebSTAR DPX100
Modem Serial Number SM0944XXX
Hardware Version 2.1
Software Version 1.0.5 r1.1.3 (cm.update.bin)
Receive Power Level 4.80 dBmV
Transmit Power Level 37.00 dBmV
Cable Modem Status operational

Downstream Status Operational
Channel ID 6
Downstream Frequency 331000000 Hz
Modulation QAM256
Bit Rate 4096000 bps
Power Level 4.16 dBmV
Signal to Noise Ratio 36 dB

Upstream Status Operational
Channel ID 3
Upstream Frequency 29200000 Hz
Bit Rate 384000 bps
Power Level 37.00 dBmV

I have noticed that also, my power level has jumped from -0.50 to +4.80 after i reset it. I have been told that part of the problem is that these channels are too close. I really dont understand the problem, i can download at my max 4Mbit, but my upload is around 20-80kbit, in return causing loss. I am on UBR01 Sandwell.

Should i request out an engineer?

Thanks
Martin

[Nedkelly]

:) Hi dont know much about the telewest network levels but you say you get packet loss have you tried a constant ping ie ping -t bbc.co uk .It could be the modem or the network .There seeems to be big problems across the country at the moment but do try the ping :)

[monkey2468]

Not sure about ex-telewest side, but on ex-ntl after a while, the upstreams would slowly end up on the same channel ending up with an over used upstream channel and the ubr dropping packets.

---------- Post added at 01:16 ---------- Previous post was at 01:16 ----------

:) Hi dont know much about the telewest network levels but you say you get packet loss have you tried a constant ping ie ping -t bbc.co uk .It could be the modem or the network .There seeems to be big problems across the country at the moment but do try the ping :)

Are you following me? or are you just not sleepy enough yet?;)

edit: bum, it looks like i'm folllowing you!

[Nedkelly]

Not tired yet :)

[Martie07]

It's fine now, it randomly happens. Sometimes its good, mostly its messed up. My power levels have dropped to a good level.

Downstream Status Operational
Channel ID 6
Downstream Frequency 331000000 Hz
Modulation QAM256
Bit Rate 4096000 bps
Power Level 0.95 dBmV
Signal to Noise Ratio 36 dB

I got no loss at the moment, but it's random.

[Martie07]

It's back.

Downstream Status Operational
Channel ID 6
Downstream Frequency 331000000 Hz
Modulation QAM256
Bit Rate 4096000 bps
Power Level 2.95 dBmV
Signal to Noise Ratio 36 dB

Upstream Status Operational
Channel ID 3
Upstream Frequency 29200000 Hz
Bit Rate 384000 bps
Power Level 38.00 dBmV


ping www.bbc.X.X -n 10

Pinging www.bbc.X.X [212.58.224.X] with 32 bytes of data:

Request timed out.
Request timed out.
Reply from 212.58.224.X: bytes=32 time=44ms TTL=247
Reply from 212.58.224.X: bytes=32 time=53ms TTL=247
Reply from 212.58.224.X: bytes=32 time=38ms TTL=247
Reply from 212.58.224.X: bytes=32 time=67ms TTL=247
Reply from 212.58.224.X: bytes=32 time=64ms TTL=247
Reply from 212.58.224.X: bytes=32 time=21ms TTL=247
Request timed out.
Request timed out.

Ping statistics for 212.58.224.X:
Packets: Sent = 10, Received = 6, Lost = 4 (40% loss),
Approximate round trip times in milli-seconds:
Minimum = 21ms, Maximum = 67ms, Average = 47ms

I cant do a speedtest @ speedtest.net, because i can do a download test but the upload test won't work. My download speed is over 4Mb. so im not suffering "download" issues. But my upload is suffering.

[Martie07]

Randomly back again, anyone have any ideas what could be causing this?


ping www.bbc.co.uk -n 20
Ping request could not find host www.bbc.co.uk. Please check the name and try ag
ain.

ping www.bbc.co.uk -n 20

Pinging www.bbc.net.uk [212.58.226.232] with 32 bytes of data:

Reply from 212.58.226.232: bytes=32 time=16ms TTL=119
Reply from 212.58.226.232: bytes=32 time=43ms TTL=119
Reply from 212.58.226.232: bytes=32 time=22ms TTL=119
Reply from 212.58.226.232: bytes=32 time=12ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Request timed out.
Reply from 212.58.226.232: bytes=32 time=16ms TTL=119
Reply from 212.58.226.232: bytes=32 time=32ms TTL=119
Reply from 212.58.226.232: bytes=32 time=34ms TTL=119
Reply from 212.58.226.232: bytes=32 time=30ms TTL=119
Reply from 212.58.226.232: bytes=32 time=14ms TTL=119
Reply from 212.58.226.232: bytes=32 time=34ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=14ms TTL=119
Reply from 212.58.226.232: bytes=32 time=14ms TTL=119
Request timed out.
Reply from 212.58.226.232: bytes=32 time=24ms TTL=119
Reply from 212.58.226.232: bytes=32 time=33ms TTL=119

Ping statistics for 212.58.226.232:
Packets: Sent = 20, Received = 18, Lost = 2 (10% loss),
Approximate round trip times in milli-seconds:
Minimum = 12ms, Maximum = 43ms, Average = 21ms


ping www.bbc.co.uk -n 20

Pinging www.bbc.net.uk [212.58.226.232] with 32 bytes of data:

Reply from 212.58.226.232: bytes=32 time=21ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=21ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=26ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=11ms TTL=119
Reply from 212.58.226.232: bytes=32 time=16ms TTL=119
Request timed out.
Reply from 212.58.226.232: bytes=32 time=47ms TTL=119
Reply from 212.58.226.232: bytes=32 time=13ms TTL=119
Reply from 212.58.226.232: bytes=32 time=79ms TTL=119
Reply from 212.58.226.232: bytes=32 time=18ms TTL=119
Reply from 212.58.226.232: bytes=32 time=46ms TTL=119
Reply from 212.58.226.232: bytes=32 time=359ms TTL=119
Reply from 212.58.226.232: bytes=32 time=84ms TTL=119
Reply from 212.58.226.232: bytes=32 time=12ms TTL=119
Reply from 212.58.226.232: bytes=32 time=27ms TTL=119
Reply from 212.58.226.232: bytes=32 time=12ms TTL=119

Ping statistics for 212.58.226.232:
Packets: Sent = 20, Received = 19, Lost = 1 (5% loss),
Approximate round trip times in milli-seconds:
Minimum = 11ms, Maximum = 359ms, Average = 44ms

Modem signals

Downstream:
Power Level 2.95 dBmV
Signal to Noise Ratio 36 dB
Downstream Frequency 331000000 Hz

Upstream
Upstream Frequency 29200000 Hz
Power Level 39.00 dBmV

I have called virgin and they have been telling me for the past 3 months "they are working on the problem"

Anything i can do?

[Martie07]

Bump for anyone that can help or give advice on what actions i should take :( i dont want to leave Virgin.

[Nedkelly]

Hi your levels look ok you could try ping plotter and run it for a day this will show where your lag is .It is a good programe i use it a lot :) I know this may sound stupid but are you using the origanal power supply with the modem ? i have seen this so many times ie .Packet loos poor speeds because the modem has the wrong power supply .But do try ping plotter :)

[Martie07]

yes its the same modem and power supply i have had for the past 3 years. i will give pingplotter a try. Thank you.

I was also considering plugging my modem into where my STB plugs in downstairs, to see if it makes a difference.

[Martie07]

really bad today, i have attached a picture of pingplotter. starting to think this wont ever get fixed. The loss starts at my UBR.

ubr01.sand.