I live in a village outside Dover. The 3rd lot of works were area wide.
The central hub where the CMTS is located is a very small unlabelled building. When Virgin last replaced the old River Delta/Motorola kit to Cisco, they had to do a total swap out overnight as building capacity was full. It really was a lift and shift. That was to fix the single thread download issue which has been fixed since Virgin did that work a couple of years ago.
I suspect the work was for the 1gbs service and also to fix low or fluctuating SNR levels to various segments.
Unfortunately, the first round of work did improve SNR from 38 to 40db on every download channel. Then came along phase 2 and they initially destroyed the good work to 35 to 38db per channel. On the 23rd, the third phase, most channels are now on 40db SNR downstream, but a number on 38db. These figures are all within specs, but obviously a higher SNR is always desired for best connection and annoying because the figures were great in phase 1 of the engineering work.
The remaining issue is the timeouts and RCS partial service messages plaguing upstream channels. Again, I've seen this on two addresses on different CMTS line cards, but I couldn't say if all customers on the CMTS are suffering from those intermittent issues. It depends on a number of factors for each network segment assigned to each CMTS card MAC address.
