on 16-08-2010 10:09
Has ANYONE else seen this problem?
Downloads start very fast - then immediately start slowing and slowing until they fail before completion with time-out error messages (for example).
In the download tab, you can watch the download speed get continually slower and slower and the number of 'minutes left' increase...
...until, eventually - they die.
This affects almost every single download I attempt from on-line music vendors.
Email support from Virgin Media has not been able to help and are very slow in responding (measured in weeks, not hours).
Please help - this is hopeless!!!!
Answered! Go to Answer
on 16-08-2010 15:05
well need to do some checking on your modem Inside the modem are various web pages that contain useful information about your connection. When reporting a connection fault it may be useful to include some of the information found within these pages. To view them open up your web browser and type 192.168.100.1 into the address bar and press Enter.
The main information the Support team are interested in are the Downstream Power Level/Levels, Upstream Power Level and Downstream SNR (called RxMER on some modems). Depending on the model of modem you have this information will either be located in the ‘Signal’ page or the ‘Downstream’ and ‘Upstream’ pages.
Please note some modems will require you to log in before you can view these pages. The login details for both the username and password is root.
on 16-08-2010 16:05
thanks for jumping in. Here's the info:-
Downstream power level: 3.6dBmV
Upstream power level: 49.5dBmV
Downstream SNR: 34.0 dB
Hope you can help!
on 16-08-2010 23:04
can you post full modem downstream and upstream, also can you take a look at- speed testing and post results.
on 17-08-2010 08:40
The internet connection is generally great.
The problem is, as I said, just with some music downloads.
The modem reports are below.
Any ideas what's wrong?
The data shown in the table below provides information about the signal coming from the network to your cable modem.
Signal to Noise Ratio
The data shown in the table below provides information about the signal being transmitted to the network from your cable modem.
on 17-08-2010 23:42
well cant see anything showing on the signal levels those are fine, when you try and download from other sources is it the same? eg if you goto http://gamefiles.virginmedia.com/blueyondergames/d
start to download anything greater than 100mb+ and see if the speed drops, since it could be a issue from where your downloading.. (also where are you downloading these songs from).
on 18-08-2010 12:24
Your downstream SNR is a bit low, just outside of what we'd deem acceptable. Can you confirm if the issue still occurs on a direct connection to the modem?
on 20-08-2010 10:19
I suffer these symptoms regularly including windows updates on my sons computer...
and it seems uploads too this morning.... I'#'ll start another thread and try to find similar info to post for analysis, just wantde to say I have the same symptoms re downloads starting ok, slowing to fail for large files....
on 21-08-2010 23:28
I agree that the downstream SNR is rather low for the modulation (256QAM) you are using.
But I'm wondering if any problem that this is causing might be exacerbated by the router policies of the music vendors.
To illustrate the thought, I'm talking about "rate limiting". I'm not suggesting that VM is rate limiting your downloads (unless you are using torrenting). But it basically works like this. Router policies are set (and this is likely to be with the music vendors too) to smooth out the service across all subscribers. You can Google the term "rate limiting" to get the full picture.
So that could be happening at the vendor end.
Does that make sense? It's speculation,, of course.
on 25-08-2010 12:45
I am not surprised the modem readings are fine (generally). In every other respect my internet connection works perfectly well.
The only issues are:-
1). some music downloads (which begin very fast) rapidly slow down (until eventually failing), and
2) some youtube videos won't play past the first few seconds.
In the first instance the vendors (various) confirmed that no other users are having problems (and indeed I am able to successfully complete the downloads when I am connected to my office network instead.
In one case the vendor (who seemed especially tech savvy) set up the download for me on a different server and it worked correctly.
Taking all this evidence together suggests to me that I have problems downloading or streaming from some servers. Is this possible?
Thanks again for the help and suggestions.
Meanwhile, the next time I experience this problem I will try to connect directly to the modem.