Why are they only now finding these issues with BSR and UBRs? lol
This is speculation, of course. But let's say there is instability in the VM network guts. When you do a tracert you see lots of hops. That's lots of routers and switches that all have to be perfectly synched all of the time and must be free from noise ingress. What if they're not? Uncorrectable FEC errors will be seen, packets re-requested and performance falls - say from 50 meg to 30 meg. This would be seen at the CMTS port but finding it in the backhaul or somewhere if it's not a CMTS situation is difficult.
If it's the CMTS, say CPU utilisation - they'd have spotted this sooner because the devices provide MIBs showing how CPU is utilised by software function. If CPU rises above 80% at peak times, then the amount of CPU used to route packets will be significant and queues will occur.
Adam this has always been the problem with Virgin unfortunately instead of sorting out current issues they push further and further and cause more and more problems.
As for Watchdog they have been on watchdog a number of times, the last time i recall was for billing dead people. Family members informing Virgin they have died and Virgin not terminating services and then charging for them.
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Update DCHP is not enabled on VM equipment hence that error but it has no bearing on your issue.
Hang on, got that wrong, it's updates not allowed, just go with what Seph has said.
__________________________________________________________________________________________________________________________________________________________________________________________________________________ Please note: I have no connection with Virgin Media. All posts are my own opinion only.