Thanks - I did wander about the SNR given the number of errors we are experiencing on the links but was not able to discover the value it should be. Just looked now and DS-7 is not able to lock-on at all and the others are all running at less than 34.5dB SNR so I shall be contacting Virgin in the morning. Have reset router, reseated cables and done as much as I can from my end already (electronic engineer with telecoms specialism so have a good idea of things). We are on an original cable link from when cable first became available on the street - 1998/9 from memory. Suspect noise is getting in somewhere so could be an interesting investigation - we have been having wireless Internet blips all Christmas - wired network more robust to the slight blips it appears but I know getting nasty lag in online gaming on wired PCs - friend on Minecraft server currently getting horrendous lag at points.
I'm sorry for the lost MDD timeouts you're seeing at the moment and that these seem to be causing the blips you've noticed with your connection.
I can see how bad things were from Saturday's BQM graph, though the live graph looks OK for the past 24 hours with no obvious dropped packets anywhere. I've tested your hub and network segment and both are currently looking OK as well.
How are things running currently? Could you post updated downstream stats please so we can see what the Post RS errors are looking like now, as some of these were very high when you first posted. It might also be worth resetting the error counters to see if these are increasing drastically.
Worth noting I reset error counters on Sunday from memory - and the SNR figures were higher the last time I checked on Tuesday but seem to be dropping again which is what happens every time we reset the router which we have to do pretty frequently - at least once a week and sometimes sveral times in a day at the worst points
I'm sorry to see you are having an issue with your broadband connection.
As HiVMBye mentioned on the downstream stats you posted the Modem SNR was low and there were high RS Errors. However when I just checked your connection, the Modem SNR is showing as all fine at 38 / 39 dB, which is much better.
If you are having the same issue can you re-post the router information again please for us to check over please?