In reply to a post by choppersrock:

Windows 11. Not able to use the desktop. Locking up.
Microsoft Outlook unable to sync mail at all. Teams not working.
Didn't matter wether I have my dream se, pfsense & my opnsense box configured. Works upon enablement at the router end but 3 days in the network is unusable. I have family working from home and spent a lot of time trying to figure out what was the problem as they were unable to work. Switch off v6 once everything has locked up cures it instantly. I asked for a new prefix but that was a no. So for now its off. Was not an issue until recently as I have had v6 from the start of my service. The above were some examples.

I have just been having a play with Hurricane electric tunnel broker and to be honest the issues you describe are present via that as well.

Good to know I wasn't going mad....the thing is it wasn't an issue until fairly recently when v6 went down one night as I explained. It's a shame YF support brushed it off so quickly as no fault found ....

Firstly, thanks for all your replies. Some updates:

1. I checked and I never had IPV6 configured originally, and after factory resetting the Arris, I turned off IPV6 anyway.

2. Unlike some that have posted replies, YF L2 or L3 support never got in touch with me until I updated my Trust Pilot review to reflect my experience and suddenly they did (on Thursday, a week after the issue occurred). They apologised, saying that somehow my ticket wasn't routed to the correct team and said they would investigate this breakdown in process as a separate matter.

3. @Daern posted that I needed to provide YF support with more specific info like a TraceRoute, IPs etc. this wasn't straightforward to do for me - consider me moderately technical. I did however install the PCAPDroid app on a phone where IPlayer and BBCNews wasn't working. This works by setting up a local VPN and capturing traffic data that way. As soon as PCAPDroid was running, the apps worked - which at the time kinda led me to the conclusion that it might be the router and not the network configuration at fault (perhaps some firewall settings?)

3a. I never changed any firewall settings on the Arris to begin with
3b. I factory reset the Arris, so any potential erroneous firewall or other config settings would have been wiped anyway
3c. When the engineer visited last Monday, we did infact try 3 Arris routers - my original one, and two others he had in the van - all with the same issue.
3d. In my post I listed a number of apps that didn't work, but over time I found many more:
NVidia shield stopped working
BBCIPlayer, BBC News, Wimbledon, Microsoft Authenticator (responding to a 2FA request), Strava and more so I told YF L1 support all of this but couldn't not work out a way to give them the endpoint IP connection attempt data vs when trying related sites via a browser which does work

4. The BIG one.. I got fed up with the lack of resolution and bought a cheap router on Amazon (Tuesday). I plugged it in and it worked first time with the connection and all apps working perfectly configured to my static IP - didn't even have to clone the MAC address of the Arris.

4a. L2 called me on Thursday to have a diagnostics attempt. I plugged the Arris back in and this time, unlike the "Partial Internet" of my original post here, the Arris didn't even connect despite all lights being green on both the router and the ONT. In the web dashboard, it said it was "up" but I had some weird IP and YF support couldn't see it connected on their side. We tried another Factory reset, confirmed IPV6 was off, tried changing DNS.. nothing. So I plugged my own router back in and everything burst back to life.
4b. L2 called me again on Friday, having spoken to L3 who said they'd "reset some session variables" (or something) and it still didn't work. When I plugged my own router back in this time, they said they couldn't see that my router was connected nor the MAC address of my router - yet the connection is clearly working

So what next? Well, I have a working connection so I'm okay with that. Apparently YF do want to get it resolved though so we'll see what they come back with next.

In the meantime and I hope this info might be of use to others. What I've encountered for consideration:

3 Arris routers tried on Monday - all exhibiting the "partial internet" problem

PCAPDroid (device local VPN) - No issues, device itself can be ruled out, how can a local VPN app send outbound traffic correctly through the Arris router and YF connection?

Nord VPN (subscription VPN on device app) - No issues, requires some kind of working outbound connection but it definitely works when I use it.

4G/5G connection (nothing to do with YF's network) - definitely rules out the device

Personal router tried on Tuesday - 100% working

Arris router tried again on Thurs and Fri - No connection, factory resets, weird IP shown as being allocated but no connection of any kind.

Edited by MarcDark (Sat 13-Jul-24 09:36:25)

It appears that the fault/error has been fixed. At some point between 3 and 5pm today my apps and devices started behaving properly again (coincidentally, just as I'd started making queries via social media).

I wonder if your Arris router will work properly again?

I wonder if they'll notify me? I'm still waiting for a call which was promised last Friday (it's Tuesday as I write).

K

Can others confirm they're also seeing an improvement?

In reply to a post by Mark07:

Can others confirm they're also seeing an improvement?

I have noticed new packet loss on V6 traffic but I just logged a ticket with Networks so will wait and see what they say. I suspect it's something internal on my end though.

In reply to a post by RR_The_IT_Guy:

In reply to a post by Mark07:

Can others confirm they're also seeing an improvement?

I have noticed new packet loss on V6 traffic but I just logged a ticket with Networks so will wait and see what they say. I suspect it's something internal on my end though.

Interesting it's only on v6 though, do you still see the v6 packet loss if you ping somewhere like Cloudflare / Google?

Far as I can see, v6 will take the same route as v4

The IPv6 thing is quite likely in many cases but you've ruled that out.

Note that the incoming notification for iOS I think come via Apple so it's not necessarily a 'one way' issue.. not sure if it's a TCP packet that needs return path anyway.

One thing I've seen elsewhere is routing problems affecting some IP blocks.. so if you're on 1.2.3.4 and another YG customer is on 5.6.7.8 it doesn't mean you always have the same routing, especially back from other networks.. Ideally you do need those traces both ways to work it out.

In reply to a post by Mark07:

In reply to a post by RR_The_IT_Guy:

In reply to a post by Mark07:

Can others confirm they're also seeing an improvement?

I have noticed new packet loss on V6 traffic but I just logged a ticket with Networks so will wait and see what they say. I suspect it's something internal on my end though.

Interesting it's only on v6 though, do you still see the v6 packet loss if you ping somewhere like Cloudflare / Google?

Far as I can see, v6 will take the same route as v4

So been speaking with networks, we believe we know where the issue is on my side, so are completing extra checks, the routing may be different. I have noticed that since rebooting kit packet loss has stopped but the IPv6 address has changed so not 100% sure what's going on.

Also noticed weird behaviour between Linux and Windows so there are so many factors at the moment we are trying to rule as many out as possible, one of the network guys did some MTRs from my exchange etc and couldn't see anything.
It's all very odd
What's weird is that when I rebooted the ONT I lost all IPv6 connectivity for over an hour and only had IPv4