Intermittent connection issues loading/changing site- secure connection failed/site can't be reached

[EDIflyer]

Is anyone else occasionally getting a 'connection down' error from Chrome (or 'Secure Connection Failed' from Firefox) when changing page - if I hit refresh it works fine. At first I wondered if it was the site I was using but have noticed it on multiple different major websites over the past couple of months and not noticed it from other locations where I don't use Three Broadband so does seem to be related to the router/connection (this is via wired Ethernet too, so not a WiFi problem).  I've tried changing DNS server in case that helps but no difference.

It mainly seems to happen when trying to first load a site or (annoyingly) at checkout when a different site is being loaded as part of the checkout process.  It certainly doesn't happen everytime but does happen with reasonable frequency.  I've also noticed I often get it when trying to pull/push from/to Github too and have to do so a number of times for it to work (browsing the Github website works fine).

I'm using a NR5103E with Firmware Version V1.00(ACBJ.0)b14 - I tried rebooting it but to no effect.

[toaster]

I had another tracing session with Three yesterday. This time they had a number of scenarios to run through.

I'm cautiously optimistic that they are getting closer to the root cause. I didn't get a timeline, but they said they would get back to me once they've analysed the data collected.

I haven't seen any change in the issues - it's been remarkably consistent for me over the last few months.

[AlSeek]

Thank you for you time on sessions with Three and your updates on what is happening, you do us all a great service! ⭐

[munk]

Still seeing issues here as well, noticed issues on the Morrisons app today when trying to checkout and the app would fail telling me I wasn't connected to the internet but a tap on the 'try again' link would instantly take me through OK.

Various pages in Firefox on Android on my phone failing to load but again with a refresh they instantly load OK.

[bytespider]

it happens far less often for me than it used to, and I was able to update Home Assistant without issue today.

[bytespider]

Have any of you started getting crazy lag spikes recently? 500-2000ms

I would have just said it was just the connection to the tower but recently it seems worse and its happening consistently when my kids start a match In Brawl Stars. Then it will be okay for several minutes then happen again.

Do we think this is tangentially related or not? 

[Nameless]

It probably is related as any packet alteration methods in use would increase latencies

[lordmerchant1]

The specific docker repositories I have the most difficulty with are ghcr.io and linux.io - not their http counterparts but pulling the image files themselves. Anybody else having this issue? 

[EDIflyer]

Yep, lots of us unfortunately - OK when connected to a VPN though.

[bytespider]

This is a know issue vector, you'll see myself and many others also have the same issue pulling docker images from those domains.

[lordmerchant1]

The sites themselves work, I.e. browsing . My specific issues arises when I try to pull docker images. So I have this issue where I cannot update my software reliably as the connection is made and drops out before completing. I often have to sit and click "retry" several hundred times before I luck out and get a stable transfer. It's maddening. I've had three for approx 9 months and this has arisen in the past 4-6 weeks.