If you aren't selling it to the neighbour, one could argue its fine.
I guess in theory passing on the ethernet cable, switch or access point would be allowed since its a totally different thing entirely. Since if your neighbour was to have access to a shared file say on your computer which happened to be connected to the ISP's network, then they are accessing the computer not the internet, I'm sure your neighbour would appreciate having access to the shared file which maybe contains information about a street party e.g. for the Queen's Jubilee as preparing for these events is important?
I'm sure you understand that a high speed link such as this is essential for file collaboration.
To be honest the only way a provider will suspect commercial activity is if they notice extremely unusual amounts of traffic and we are talking TB's not GB's. Like back when i first joined virgin I was on 50Mbps and the usage was basically flat out constantly for quite a while since I was on 10 meg before so sorta put off big downloads for a long time, as it basically got a point where my 10 Meg connection was maxed out constantly when people were working from home, in video calls and remote desktop the usage outgrew the connection. I was struggling to load google or websites or do updates in reasonable time.
The upgrade to M100 only took place because we had a lot of guests for a BBQ and needed the bandwidth as there were a couple TV's constantly streaming and the guest network.
The thing is, it wasn't the amount of people that was the problem, I could easily have had 100 users on websites, it was what they were doing.
I mean a 10 people on social media, streaming, uploading, going mad on the network, mainly because they knew that I had faster connections than their 30Mbps FTTC lines and they were purposely trying to make mine struggle, one person just sat there with a constant speedtest open.
I'll be honest and say that I wasn't really bothered because I knew that VIrgin Media didn't care about usage, it didn't affect me much anyway, was too busy trying to stop food burning, the network comes second to the BBQ.
I learnt from this that traffic management on my guest network was needed. Now each guest has to logs in using their email has a max of 30Mbps shared across each device they connect, with bursts of 50Mbps if there is no other traffic. The whole guest VLAN is limited to around 350 Mbps so I can still continue as normal without being affected, by speed testing traffic hogs (one of which will probably see this)
I think you get the idea. But I honestly wouldn't be bothered about it because back when I was on M50 my average monthly usage was 3TB download a month and 1TB UP. I think when the speed doubled the usage didn't really increase much It just condensed in smaller amounts of time allowing devices to be switched off quicker, saving electricity. I will say this year when I was on M100 there were points with days of non stop uploads and downloads so it got unbearable and felt like ADSL. I know full well that I went well over 7TB a few months ago, around 1TB of updates, 100 gigs of speedtests with samknows, video editing used over 4 and so did streaming, at an average of around 25 gigs a day.
I won't go on any longer as I think I have gone slightly off topic but in a nutshell I don't think your ISP will be bothered
Many Thanks,
RR-THE-IT-GUY
Virgin Media M500
Talktalk 2014-2018 →
Virgin Media Vivid 50 2018-2019 →
Virgin Media M100 2020-05/2022 →
Virgin Media M500