FYI The forum team respond to the oldest posts waiting for a reply. This means if you keep posting on the thread then it will bump you to the bottom of their list.
@ModTeam Please can you ask somebody from the forum team to take a look at this thread as the OP has been waiting a wee while and by posting again has inadvertently bumped this thread to the bottom of the forum team's list.
Disclaimer - I don't work for Virgin Media. I'm just another VM user trying to help out so my answers may be wrong If my answer solves your problem please mark it as helpful as it may help others My setup: Vivid 200 Optical fibre with Superhub 2 in modem mode connected to a Netgear R7000 router. Telewest/VM user since 2001.
The reason is that the issues I investigated on the other thread had the CMTS type in common.
You don't and I've not seen any other reports of slow single stream transfer rates (whilst general Internet speeds fine) in relation to a Cisco CBR8 before. I note your Hub is in modem mode and assume you have a router connected. If so would you please disconnect that, hard wire a pc directly to the Hub and re-test? This is for elimination purposes and not an attempt to assign blame to your router by the way.
My tests have yielded no obvious issues. No network or Hub faults, no congestion problems. So we may have to do a fair bit of digging on this one, but hopefully we'll make some progress.