VM recognised my connection was overutilised and gave an estimated fix time 3 months ahead (end of January) so I downgraded from 50 to 10. Just over a week ago there was a three hour outage which was published on the faults page. When the connection was restored I was on a different CMTS and my upstream power level had changed significantly. I noticed that the TBB graph still looked poor and asked if the fault number still applied. The first tech to respond said
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I've checked your connection and I'm afraid I can see that the UBR which handles your connection is still experiencing very high utilisation at peak times. I have raised this to our Network teams to investigate best methods to alleviate the load and asked why an upgrade has already been hit badly just like the previous fault.
As soon as we have some more information on this issue, we'll let you know.
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The follow up (after prompting) said
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I canot find any open tickets for planned work for your part of the UBR, there is some high utilisation at times but not to the level where we could raise a fault ticket.
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The current graph from yesterday when my connection was hardly used at all is
Now this still looks poor to me. My suspicion is that they used a fault to swap a few users to a different CMTS leaving two marginal rather than splitting the original area onto a new node (or whatever they are called) leaving two in good shape.
So do I risk asking for a speed upgrade again or not? I'm not paying for 30 if I only get 10 or so at peak times. It doesn't look worthwhile to me TBH. If I have to stay on 10Mbps I may as well quit for ADSL now as I know that will be better.