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.

[JonathanB]

Hi @AkiTaiyo,

I appreciate your frustration, we're still pursuing these issues, but the info I'm passed is very high level, and there's not really much I can say until we either; confirm a solution, have other tests or settings to check out with you all, or need to arrange more traces.

There's work going on to analyse data from a number of live traces we arranged. It's been passed between a few different specialist areas, so I can only surmise there's been some red herrings with establishing what is actually causing the root issue, but I'm hopeful we're getting closer to a solution.

Thanks,
Jonathan

[Midnight54]

Unusual observation while trying to update my game, DCS World, via the updater yet again today - which always gives the SSL errors and refuses to even start no matter how many times I relaunch the exe until I open the web page beforehand

I usually open the DCS web page in Firefox, and then quickly launch the updater exe in order to get it working.  This time I loaded the webpage in chrome for a change, but the exe still refused to connect.  Tried multiple times.  The only way to get it to work was to switch back to Firefox, load website then, and then the exe launched without issue

[Nameless]

Apart from Chrome and Firefox being different browsers, are you using the same add-ons and similar settings? That may explain things otherwise it is just ultimately unusual...

[Midnight54]

Yeah as far as I can tell things are pretty much the same - Ublock Origin on both browsers, only extra on Chrome is the Lastpass extension.  While I dont think the strange chromefailing/firefoxworking is prob an avenue worth exploring (as Jonathan says - lots of red herrings) - and maybe Chrome was having its own fit.  The installer itself basically fails every single time try to update unless visited the website beforehand.

That being said, I wouldnt want to remove it and reinstall fresh here, as I have around 700gb of game data with the modules I own etc....Though I can replicate the SSL error every time on running the DCS Updater if haven't launched the webpage for so long (even if no update is available)

However I suspect if someone downloaded just the small 12mb installer, waited a while after closing the page (an hour maybe to be sure) then I suspect the installer wont work either and be able to be replicate each time (I could potentially try this on another machine that doesnt have DCS installed) - if its theoretically a good non web browser way to reproduce the error

[Midnight54]

I have downloaded the DCS installer and remoted to my old HTPC, will give it a while then try and run the next stage to see if works, as page has been opened recently so would work - in case useful for any testing point of view to replicate non web browser issues

[Nameless]

I would not expect Lastpass to cause the difference in theory however uBlock Origin would not act entirely the same on Chrome as it would on Firefox... Excluding that, it does seem to be a Chrome/Firefox issue however I would not expect miracles if you did start both with all add-ons disabled but that is not the main issue here

Unfortunately I do not have a Windows machine to use for testing (Well... A glorified laptop CPU in a PC shell running Windows 8.1 will struggle immensely) and everything gaming that I can do is not through my PC - Excluding initial issues with the 3internet APN on the Nintendo Switch, there have not been significant issues since switching to the other Three APNs (Mostly three.co.uk, now ID)

Maybe it would be beneficial for one of the Three staff to download DCS World as it is clearly doing something that is reliably triggering errors

[Midnight54]

Thanks for the reminder.  So before, when I downloaded the installer, I did press continue and it started downloading fine. That will have likely been because I had just left the actual website of course, so just how it works for me on my game PC.  So I kept the installer, and uninstalled the game installer.  I then hopped back to that PC and sure enough, on a clean install after the previous above picture, the same SSL socket error on loading followed by DCS's own log file, like my previous errors I've been able to replicate where it will not kick in.  Of course other people have similar ways to replicate the errors with git pulls too, but its handy to have a known other app that reliably fails that isnt a webpage.  

[andym00]

So, been suffering this for months now before stumbling over this thread.. Symptoms, same as others, Netflix on Amazon Fire can't login 99% of the time, Microsoft Authenticator fails 50%, Partners banking app failing 90% of the time..And various other apps and sites that vary from sometimes working, to every single time authentication (or something) fails..

I work from home, and when connected via the company VPN everything is absolutely fine, but that's not really a solution for everyone else in the house.. Another VPN on another computer works fine as well, sadly running a VPN for the whole house isn't prractical..

Using a Zyxel NR5103E 5G router, Adult Filter is on, but is supposed to be off (will be the 3rd time I've called to disable it! Works, then N random months later it'll be back on)..

Forcing the routers radio bands to only 4G bands gets things reliable and working again 100%, that's the only solution I've found (bar the VPN).. Downside is I get 120D/30U/30ms using 4G versus 900D/60U/20ms in 5G mode.. Not ideal, but it's a work-around for now, but I'm wearing tired of it it now..

Is swapping Routers an option here ? I'm guessing not since I see similar behaviour on my iPhone 15 Pro when connected to 5G, but not as bad as the Router is..

[Nameless]

As far as I am aware, the routers provided by Three will not change anything however the only VPN-like alternative that I can recommend would be Cloudflare's WARP which is free and works on both computers and mobile devices with some more information present here in my first post in this thread and this following post (There might be a few other useful posts that I have forgotten although WARP may be faster than using a traditional VPN)

Hopefully there will be a proper solution to these issues sooner rather than later

[andrew_w]

I've recently started to get this issue on my 5G home broadband. ie. PR_END_OF_FILE_ERROR in Firefox. Reloading the page multiple times will "solve" the problem, but it happens every few webpages.

I'm also getting problems with updating my Debian GNU/Linux, which also seems to be an issue with SSL.

I use a VPN a lot of the time, and with that (as others have mentioned) the issue disappears completely. However, sometimes I want to use the full "raw" connexion, or I have to do so because of geolocation for work, and the problem raises its head, persistently giving me problems with web pages and logins.