Intermittent Virgin issues — torrenting causing it? Can a new router help?

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We've had ongoing issues with Virgin Media broadband for several months now. It cannot maintain a connection and is constantly dropping for 15 minutes or more several times a day. There's no correlation to busy network times and even when it's up the connection is very unstable. All connections are wired on 1GbE with Cat-5E and all cables have been tested. We're on the 350 Mb package (1Gb still not available here) and we get close to advertised speeds when it's working.

On of us is a university lecturer teaching remotely over Zoom. Suffice it to say several connection drops during a lecture is not acceptable. The other has fast-paced work where being 30s late can often mean the difference between success and failure and also requires uploads of 100 GB files to Google Drive 2-3x a week (these have to be restarted when interrupted). Constant drop-outs are also having a huge impact.

I have spoken to Virgin multiple times and spent dozens of hours on hold and on the phone to them. They have replaced our Hub twice and two engineer visits have added an attenuator, replaced all cabling inside the property as well as the splitter and hardware in the street cabinet.

Our internet looks like this on a good day:





And like this on a bad day:





As a comparison, my neighbour a few doors down also has poor latency but is more or less fine.



I thought it might be the router struggling with high numbers of connections (we do torrent a few files a week) and latency noticeably increases when the client are active but there's no clear correlation.

I'm hesitant to throw money at the problem especially given Virgin have been so clueless but if I buy a Ubiquity router & AP or pfsense routers do you think there's any chance of it having an effect? Or what else could be causing it and how can we resolve it? It's impossible to keep on like this.
 
There should be a page with the down and upstream signal strength and things. If you could post those stats we can see if they look ok. I don't know the exact name of the page as I have a SH2ac not a 3 :)
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Jesus those graphs are terrible, have you tried the virgin community forum? I've found them great in the past.
Yes have tried everything.

Posted on the forums. Included graphs and the router status. They told me they'd flagged it for staff and to wait because it could be a few days.

That was three weeks ago.

Also have tried making contact on Twitter but replies only come every few days and keep starting from the beginning saying things like "are you still experiencing issues?" We have been experiencing issues for months! Even the suggested text number doesn't work. I have sent texts multiple times from my registered mobile number and never even received so much as an automated reply back.
 
OK for the sake of £2 on an auction site I would try a 6 or 9dB one (to replace existing 4 dB). Guessing the cable from your modem to the wall socket is all good btw? Could try swapping that out if not already (guessing you've done this if they've sent out a new modem).
Yeah the cable has been replaced recently too (although it is far too long).

Can the power level really cause what I'm seeing in the graphs? There was no noticeable change after they installed the 4 dB attenuator.
 
5m extra cable vs. having an amateur (no offence intended) reterminate it after shortening is not a tradeoff I'd consider to be worth making.

OP - give up torrenting for a week and see how you get on. I'm sure this is related to the amount of UDP traffic going through the Hub. Also do a pinhole reset of the Hub and leave it to reprovision.
None taken. And yeah that's my plan. There's almost no torrenting traffic though, certainly not comparable to those red lines in the BQM. Maybe 2-3 5GB files a week.
 
You need to try and escalate it to someone who knows what they're doing. 2 "engineers" with no improvement or even an inkling as to what is causing it is **** poor.

Any advice on this? I've spoken to both at length. The last one told me everything had been replaced apart from the cable between the cabinet and the property.
 
Further thinking that it's not due to the UDP is that that issue seems to mainly only happen when running in modem mode which I've still never done.
 
But this, even if you don't think its that just try it. You'd be surprised how many complain about VM on here and a fair few are caused by either their own kit (PC, laptop, some old AP from 2005, a Pi running a firewall or whatever). Ideally you need to run just 1 PC cabled in for a few days with nothing else connected and work backwards from there but I know that will be difficult.

Presumably the BQM would filter out any issues with other equipment? We see big outages, latency spikes and lots of dropped packets overnight when nobody is using the connection (okay sure, maybe our two phones are getting some push notifications).

Overnight nothing else is on, we don't run a pihole or third-party AP/router. Nobody games or even streams a lot, no VoIP other than working hours. I have a linux box directly connected to the SH3 by 1GbE that runs speedtest-cli every hour and ping constantly and that's it which also sees the same issues.
 
I don't believe it. I turned of torrenting yesterday morning and this is what we have now:



Not amazing but I'd kill for that to be the normal situation.

What confuses me is that we are not heavy torrent users. No auto-snatching, no constant seeding/leeching. Like I said, just a handful of files a week absolute max which are left seeding for 48-72 hours at low speeds.

I was hoping that if torrenting was the culprit then buying a Edgerouter X + UniFi AC LR AP would be the solution but it appears not.

It's looking like it might be this:


Even though we don't use modem mode and don't use much UDP traffic. In which case is Virgin actually going to be useable for us at all?
 
I've been having problems with using a vpn and torrents on the hub 3.Was thinking of putting it in modem mode and buying a decent router to attach to it as a way of bypassing the massive throttling im getting. Will this work or am I wasting my money. Was thinking of getting the tplink archer ax50
This was my plan too but I'm holding back for now due to the issues with the Intel Puma chip. Please do report back if it makes any difference though.
 
Torrents aren't 'just' quiet little downloads that sit there inconspicuously trickling data up and down. They open shedloads of connections up and down and are well known for bringing cheapo routers to their knees. They just aren't very useful these days when you can just download stuff straight off a CDN at max speed with a single connection.

Why not just use a different means to obtain the files you're after?
Because there aren't any for lots of them. I've already said I'd happily buy new kit if I knew that were the issue and not the connection itself or the Puma chip. It's the troubleshooting that's the issue.

I've had 1000s of running torrents and 100s of active files at a time on Virgin connections with no issue before so I'm not understanding why the same router hardware can't handle it now.
 
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