Ethernet download speed issue in the evenings, Edinburgh.

[Doddie]

I'm in Edinburgh and my Windows 10 PC is connected to the Ultrahub via ethernet cable (it doesn't have wireless capability), the FTTP cabling was laid by Cityfibre.
For around a week now i've had terrible download speeds on my PC from around 17:00 through to midnight, either side of those times there is no issue with regular sustained speeds of around 940Mbps down and 840Mbps up.

Right now i'm seeing again, speeds of between 7-15Mbps down and 840Mbps up.

The odd things is that wireless speeds don't seem to be effected as confirmed on 2 mobile phones and a Microsoft Surface Pro tablet, i don't understand how the Ultrahub is able to maintain it's wireless speed yet the LAN port is somehow slowing to a crawl.
e.g. if it is simply a network demand issue then surely it would effect a wireless connection as well?

All the speed tests above were using Ookla Speedtest.

Below are two tracert's, one to bbc.com, the other to bbc.co.uk

Tracing route to bbc.com [151.101.64.81]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms vodafone.ultrahub [192.168.1.1]
2 9 ms 9 ms 9 ms 84.65.128.1
3 9 ms 9 ms 10 ms 63.130.172.37
4 10 ms 10 ms 10 ms 90.255.251.117
5 9 ms 9 ms 9 ms 151.101.64.81

Trace complete.

Tracing route to bbc.co.uk [151.101.64.81]
over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms vodafone.ultrahub [192.168.1.1]
2 9 ms 8 ms 8 ms 84.65.128.1
3 10 ms * 9 ms 63.130.172.37
4 10 ms 10 ms 10 ms 90.255.251.117
5 9 ms 9 ms * 151.101.64.81
6 10 ms * * 151.101.64.81
7 10 ms 9 ms 9 ms 151.101.64.81

Trace complete.

Both tracert's were taken within 15 minutes of each other at about 9pm tonight, any insight into what's happening and why, and if there's anything i can do at my end, would be greatly appreciated.

[Tal]

You are very welcome. The team on work Mon-Fri 8am-8pm and Sat-Sun 8am-8pm.

Tal

[Doddie]

@TalMy download speeds are now dropping off again and while the initial test page said there were no issues i clicked on a link on the page that asked something like 'do you still need help'', i clicked on that link expecting to find a page with contact numbers or for a chatbot, surprisingly a whole other series of tests were run with questions such as if i am in the household where the broadband is installed, and what type of router do i have.

After that finished i was met with the following message:

"We've found a potential issue
The speeds between your router and our network are slower than expected. We need to send your results to our Technical Support team who will investigate and be in touch. Don't worry; we've captured your results from all the tests and checks so far. Please keep your router plugged in and powered on."

The first time i ran the test in full (as above) when i clicked on the link titled 'Next' below the message above i got a page telling me no issues were found, when i'd already been told there was an issue found indicating the testing was over and that was that.
Thinking it odd that one minute i had a potential fault to having none at all in the same session, I ran it from the start again and that time when i clicked 'Next' below the 'We've found a potential issue' i was asked for my contact details followed by a page with a fault reference.

I have no idea why it took two attempts to get a fault reference but just happy that whatever the issue is it's being looked into.

Thank you for your help.

[Tal]

Thank you for updating me @Doddie. If you have been given a reference number, that means the our system has found an issue with the service, it may be speed or something else, but the good thing it has found it and raised it to our Tech team. The team will now check on the service and normally they get in touch with you within 24-72 hours to confirm what they have found and what the next steps are.

You can reach the team if you need or notice the issue is getting worse by calling the team and providing them with the reference given by the system.

Tal

[F4rthay]

Hey @Doddie I’m also in Edinburgh and having the same symptoms with slow downloads in the evening with the Fibre 900 service. Like you Vodafone tested and said my speeds are slower than expected so filed a support ticket with CityFibre. The bad news news is CityFibre closed my ticket on the basis all their checks couldn’t see a problem. Vodafone are reopening the ticket and checking CityFibre tested in the evening. If you get a solution let us know and I’ll do the same. Best of luck.

[Doddie]

@F4rthayI don't have a solution as such but i do know CityFibre found a fault and are still working to fix it.
I didn't 'file a ticket', i used the link that Tal (a Moderator) in this thread posted earlier to run online diagnostics via the Vodaphone website.
If you want to do the same, might not be a good idea if you already have a Fault Reference from Vodafone?
I selected the "Slow speed" option on that page and followed the instructions from there when my download speeds were at their worst which on that night was after 7pm.
Note though that when the first set of tests finished and said no issues were found i almost stopped there but noticed there was a button just below that that said something like 'Do you still need help' so i clicked on it and surprisingly it began another series of tests that identified a fault and issued a Fault Reference number.

I hadn't heard anything after that so yesterday i had a look on the Vodafone website to see if i could find out if it was possible to track the reference number without having to phone Vodafone. I found how and saw that my initial Reference number had been cancelled and a new one issued but there was no info about what the fault was or what action was being taken so i phoned Vodafone Broadband support team to ask if they could tell me what was happening.
He wasn't able to tell me very much but he did confirm that the settings in my Ultrahub and the hub itself were not the cause of the issue, also that CityFibre were investigating the issue and that yesterday an engineer had visited my local street cabinet and he could see another visit to the same cabinet booked for today.
It's too early to say if the work that was carried out at the street cabinet today, if it happened, has made any difference but i'll be keeping a close eye on my speeds.

[F4rthay]

@Doddie you may be able to see any Vodafone (not CityFibre) updates at 

https://www.vodafone.co.uk/broadbandservicetest

My Vodafone router has the same results as my unfi router. I’m going to run more tests tonight.

[Doddie]

So far so good, still not perfect but after CityFibre did something at at least my local street cabinet there has been a marked improvement last night and tonight.
Last nights DL speed varied from 930 to 617Mbps from 18:00 through 22:00, at midnight it was the normal consitent 940Mbps again.
Tonights DL speeds so far have never dropped below 833Mbps.
Clearly what ever CityFibre is doing it's rectifying the fault 😀

[F4rthay]

Sounds like a result @Doddie . I’ve not seen any evening speed drops the past two evenings. Oddly my problems appeared to start around the same time as yours. I’m still waiting on a case update but I’m not sure anything will come out of it. As long as the problem doesn’t reproduce I’ll be happy.

[F4rthay]

@Doddie my case was updated to say CityFibre carried out work and the issue is now fixed. No further details so I’ll wait and see but the symptoms haven’t been seen for the last two nights.

[Doddie]

@F4rthay  There's no update on my case number yet but this is the third night in a row without any issues for me so hopefully it is rectified and the lack of an update is just an oversight.