What I think is causing the confusion here is that there could be two problems with your UBR.
First off, you notice a dramatic speed drop and notify Tech Support who look into the connection and spot that the power levels from your particular UBR are abnormal and book a tech visit.
The tech arrives the next morning and adjusts, say, the output from the UBR back within limits and reports the problem fixed.
Later that afternoon, you experience the congestion of having too many people connected simultaneously to your UBR and let TS know that "the problem is back".
TS check the records and say the problem was fixed.
If I'm anywhere near correct, the only real solution is for a fairly massive expansion of UBR capacities. And, again as I understand it, that's what's anticipated from the DOCSIS 3 roll-out next year which can't be done until all the UBRs have been uprated, which is what is happening right now.
I'd appreciate it if any VM tech crew could correct any errors in my deliberately simplistic explanation!
