100M : Up-speed halved

[roughbeast]

For the first time since I have been with VM, > 5 years, I have a persistent service problem.

For 3 days my up speed has been reduced to < 5Mb.



This is a similar result to those I have had any time of day.

Here are my levels and settings. Any ideas?

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 299000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
Downstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power SNR Docsis/EuroDocsis locked
Locked QAM256 210 55616000 Kbits/sec 299000000 Hz -1.1 dBmV 35.9 dB Hybrid
Locked QAM256 209 55616000 Kbits/sec 291000000 Hz -0.7 dBmV 36.3 dB Hybrid
Locked QAM256 211 55616000 Kbits/sec 307000000 Hz -1.4 dBmV 36.5 dB Hybrid
Locked QAM256 212 55616000 Kbits/sec 315000000 Hz -1.7 dBmV 36.7 dB Hybrid
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV 0.0 dB Unknown
Upstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power
Locked ATDMA 2 10240 Kbits/sec 35800000 Hz 42.5 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Primary Downstream Service Flow
Downstream(0)
SFID 724
Max Traffic Rate 110000000 bps
Max Traffic Burst 10000 bytes
Mix Traffic Rate 0 bps
Primary Upstream Service Flow
Upstream(0)
SFID 723
Max Traffic Rate 10250000 bps
Max Traffic Burst 16320 bytes
Mix Traffic Rate 0 bps
Max Concatenated Burst 16320 bytes
Scheduling Type Best Effort
Current System Time:Fri May 18 05:38:31 2012

[General Maximus]

very very interesting because you are provisioned for 10mbit up. It is like you have been hit by stm on your upstream and it has been cut to 50%. I know it isnt network wide because I am uploading at 1.17mb/sec as we speak.

[slowcoach]

Provisioning speed shows the maximum speeds you would get in an ideal world, then networks places a cap on at their end and that is then the maximum you might get. I have been on a 2.7 Mb/s upload cap since the beginning of April, VM just do not have enough upload to go round at this time. Some areas are in total meltdown due to the speed doubling, VM have to have the fastest download speed adverts no matter what.

[craigj2k12]

congestion maybe?

do you have a TBB monitor set up?

[foxtrot_yankee]

So is that why I have this? (60Mb)



This upload speed is less than what I had on the old 50Mbit.

[Milambar]

No, I believe that the upload speed fpr 60mbit is 3mbit, until the upload upgrades have been completed, then it will rise to 6mbit.

[roughbeast]

Originally Posted by General Maximus

very very interesting because you are provisioned for 10mbit up. It is like you have been hit by stm on your upstream and it has been cut to 50%. I know it isnt network wide because I am uploading at 1.17mb/sec as we speak.

That is what I thought until I got the same readings day or night, for 3 days running.

I have checked all the usual issues, like usage elsewhere on my home network. Really this is out of the blue, with no previous history of congestion around here and a squeaky clean ping monitor graph.




Still , 5Mb upload this evening. Damn that means I have to call Bangalore!! Grrrrr

[The Installer]

Originally Posted by roughbeast

Upstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power
Locked ATDMA 2 10240 Kbits/sec 35800000 Hz 42.5 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Primary Downstream Service Flow

Don't know if this is anything to do with it, but most other people have an upstream channel of 20480 Kbits/sec. See yours above.

[General Maximus]

that is the max speed that can go through the channel i.e. it is a 10mbit channel which sounds a bit off because that means you need the whole channel to yourself to get max speed.

[craigj2k12]

Seems strange, are you sure your IP hasnt changed, I would have expected congestion on a 10mb upstream channel!

[roughbeast]

Just had a word with Bangalore. Kind lady said she would check the line.

"No fault can be found on your line", was her verdict. "Let us know if you are still having the problem tomorrow."

Speed test 5 minutes later.



Can't they just be honest?

---------- Post added at 20:19 ---------- Previous post was at 20:16 ----------

Originally Posted by craigj2k12

Seems strange, are you sure your IP hasnt changed, I would have expected congestion on a 10mb upstream channel!

No. My IP address has not changed. My ping monitor is functioning on my existing address.

---------- Post added at 20:24 ---------- Previous post was at 20:19 ----------

Originally Posted by General Maximus

that is the max speed that can go through the channel i.e. it is a 10mbit channel which sounds a bit off because that means you need the whole channel to yourself to get max speed.

Perhaps that explains why the max I get is only ever 9.1Mb, despite my 10250000 bps setting. Although, of course, there isn't enough room for overheads anyway.

[General Maximus]

nice to see it is back where it should be (more or less)

[Ignitionnet]

Bet your upstream channel is back up to 20480kbps.

[roughbeast]

Originally Posted by Ignitionnet

Bet your upstream channel is back up to 20480kbps.

Upstream Channels
Lock Status Modulation Channel ID Max Raw Bit Rate Frequency Power
Locked ATDMA 2 20480 Kbits/sec 35800000 Hz 41.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Unlocked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV

Puzzling isn't it? Why did they change it in the first place?

[Ignitionnet]

It changed itself, noise on the line made it fall back to a modulation that could cope with a lower SNR until the noise was fixed or went away.