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Sticklebrick73
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Download Speeds yo-yo ing from 100 to 0

Hi,

Would've super grateful if someone could help me. I'm loosing my sanity. On a daily basis my download speeds for no discernible reason plummet to ~1 mbits/s and upload to 0. More often than not a full reset gets things going again but not always :-( I've had an engineer out who replaced all cables and fittings in the house and the superhub2 ac.But the issue is still occurring.

Any thoughts?

Cheers in advance

Richard
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Sticklebrick73
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Yo - yo ing speed - very frustrating :-(

Hi,

Would be super grateful if someone could help me. I'm loosing my sanity. On a daily basis my download speeds for no discernible reason plummet to ~1 mbits/s and upload to 0. Sometimes a full reset gets things going again but not always :-( I've had an engineer out who replaced all cables and fittings in the house and the superhub2 ac.But the issue is still occurring.

Any thoughts?

Cheers in advance

Richard

I reset the hub a couple of minutes ago and git the following reports.Hope they are helpful / can be read ok!!
Downstream
DS-1 DS-2 DS-3 DS-4 DS-5 DS-6 DS-7 DS-8
Frequency (Hz) 218750000 226750000 234750000 242750000 250750000 258750000 266750000 274750000
Lock Status(QAM Lock/FEC Sync/MPEG Lock) Locked Locked Locked Locked Locked Locked Locked Locked
Channel ID 7 8 9 10 11 12 13 14
Modulation 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM 256QAM
Symbol Rate (Msym/sec) 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000 6.952000
Interleave Depth I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17 I=12
J=17
Power Level (dBmV) -2.13 -1.70 -1.75 -3.19 -3.12 -2.30 -1.94 -2.94
RxMER (dB) 36.17 35.97 35.97 35.78 37.09 37.36 37.94 36.84
Pre RS Errors 316850 346122 312040 318988 362840 334363 341932 347473
Post RS Errors 289543 318838 282530 291632

Upstream

US-1 US-2 US-3 US-4
Channel Type 2.0 N/A N/A 2.0
Channel ID 14 N/A N/A 13
Frequency (Hz) 35800000 N/A N/A 45800000
Ranging Status Success Other Other Success
Modulation 16QAM N/A N/A 16QAM
Symbol Rate (Sym/sec) 5120000 N/A N/A 5120000
Mini-Slot Size 4 N/A N/A 4
Power Level (dBmV) 49.50 N/A N/A 51.21
T1 Timeouts 0 0 0 0
T2 Timeouts 0 0 0 0
T3 Timeouts 7 0 0 7
T4 Timeouts 0 0 0 0

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Superuser
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Re: Yo - yo ing speed - very frustrating :-(

Hi Richard

Please don't post multiple threads for the same issue, it doesn't get your issue addressed any quicker.  I have merged your threads.

The upstream power levels you posted are a bit high, with one of them above the recommended maximum of 51.  The Post RS errors on the downstream look concerning, unless they are just a historical build up.  Might be worth resetting the RS errors and seeing if they start to climb rapidly.

In order to get the upstream power levels brought down requires an engineer visit.  You can call VM and try to book a visit or wait for the VM staff to get to this thread and they can help you book a visit.

______________________
Scott

Disclaimer - I don't work for Virgin Media. I'm just another VM user trying to help out so my answers may be wrong Smiley Happy If my answer solves your problem please mark it as helpful as it may help others
My setup: Vivid 200 Optical fibre with Superhub 2 in modem mode connected to a Netgear R7000 router. Telewest/VM user since 2001.  

 

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Sticklebrick73
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Re: Yo - yo ing speed - very frustrating :-(

Thanks Scott - sorry about the multiple threads - realised I posted in the wrong sub forum first and being new to the forums I couldn't see how to move my thread.

Anyway, after a 45 minute call to VM yesterday the have point blank refused to send an engineer - so if a member of VM Staff could get in touch through this forum that would be lovely.

Cheers

Richard
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Superuser
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Re: Yo - yo ing speed - very frustrating :-(

The board you initially posted in was not too far off so would have been OK to get a response, but for future reference if you think something needs to be moved you have to flag it with the moderators to get it moved.

A bit worrying that the staff you spoke to didn't spot the high upstream power level, unless it is fluctuating and wasn't that high when you spoke to them.  It is possible that there is an area fault which would prevent them from booking an engineer visit until that has been resolved, their system won't let them do it or will cancel the booking, although they should have told you that.

I have flagged this thread with @ModTeam to hopefully get a response from the forum team soon.  They don't work on Sunday so it will be tomorrow at the earliest before they can look into this.

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Scott

Disclaimer - I don't work for Virgin Media. I'm just another VM user trying to help out so my answers may be wrong Smiley Happy If my answer solves your problem please mark it as helpful as it may help others
My setup: Vivid 200 Optical fibre with Superhub 2 in modem mode connected to a Netgear R7000 router. Telewest/VM user since 2001.  

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Forum Team
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Re: Yo - yo ing speed - very frustrating :-(

Hi Richard,

 

Thanks for taking the time to post on the community.

 

My apologies that you are having issues with your broadband speeds. I know how frustrating this can be.

 

I've managed to locate your account and the upstream power levels are showing as between 48 and 50 dBmV which does suggest that they are fluctuating and the T3 time-outs are rising. I would like to arrange for an engineer to check this over for you. I've sent you a PM (purple envelope icon, right corner) requesting some details.

 

Hope to hear from you soon

Sam


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