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.

[seangb1989]

I am really sick of this as well. I've spent half of my day looking into this problem playing around with TLS 1.2/1.3 up/downgrading ciphers etc and it seems to be an issue with RST packets looking at wireshark.

I've blocked the RST packets on MacOS and it didn't seem to help much.

[seangb1989]

An example of the RST packet in question

Started getting errors again. Anyway here are the RST packets. Don't seem to get them on my BT connection. I assume these are the problem, maybe?

[seangb1989]

Did they actually fix this? I am getting no errors tonight. Or is it because its 4am lol.

[hughesceri]

Still failing consistently for me at 7.30 am 😞

[EDIflyer]

100% not fixed - I actually thought it was getting better but has just got a whole lot worse over the past few days for me, especially to Github.

@JonathanB can we please have a detailed update as to what exactly is happening here?

[hughesceri]

Using diy.com (or trying to) is impossible. I've just spent 15 minutes trying to place an order but there were so many network errors, I'm not even sure if I've ordered anything, even though my card has been charged.

THIS IS NOT THE EXPERIENCE I'M LOOKING FOR IN A BROADBAND PROVIDER.

Please give us an update @JonathanB  - I'm especiually interested in how I get out of my contract early without penalty. I'm already looking for another provider.

[gklittlejohn]

I've just switched over to three broadband and I am getting this issue. Three broadband app shows the router as having excellent signal. I can reproduce this issue as above on diy.com but I also see it on random apps on my phone and sometimes when I try to open Disney Plus or Netflix on my TV.  Would like to know if there is a solution, in case I need to sort out another broadband provider.

[applepieman]

I can also replicate this on DIY com. Three clearly have no intention of resolving this for paying customers. Therefore can you at least acknowledge this has been recognised as an issue so paying customers can leave their contact without any issues.

[JonathanB]

Hi everyone,

I'm sorry for the lack of updates on this issue. I'm chasing the service desks on this, and I appreciate it's been a long time since any progress has been reported around this. I'll let you all know as soon as I have any more advice or info.

Thanks,
Jonathan

[EDIflyer]

I think you need to escalate this much higher than the service desks, @JonathanB - this is becoming a pretty major issue for multiple customers now.