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.

[Midnight54]

Tried to download from the top right icon direct from the main link but get the following message on the page

"Sorry, this file is infected with a virus.

Only the owner is allowed to download infected files"

[AkiTaiyo]

Lol, ok..
GDrive doesn't like the binary so here's the source only version.

https://drive.google.com/file/d/1xPegW545CZ8V4nMw7h1ARhRhKZpbtLvn/view?usp=sharing

[Midnight54]

Thanks - downloaded - of course I've no idea how to compile it - so guess time to google and download visual studio 😄

Edit : downloaded VS Studio and Net extras, loaded in VS Studio and Built, now running 🙂

[Midnight54]

Hmmm not sure how to interpret whats going on with the results.

Reddit itself appears to be for the most part working despite the result sayin GenFail, but almost all the results are suggesting no issues, yet I'm having loads of issues today, especially with duckduckgo

[AkiTaiyo]

Like I said, the detection of the SSL drop error is dodgy.. relies on a text comparison which isn't necessarily going to stay the same across systems, but it was working for me untill the problem stopped..

I can't reproduce the fault on any platform or software tool  here, so I can't find a better way to track the error..

GenFail counts are when the there is a reply, but the status code isn't 200 (or "too many requests)

If you're interested in digging further into this the feel free to DM me and I'll send some other code to try, no point fault finding this on forum.

[Midnight54]

I can't even do my Santander banking changing between pages cos the pages are constantly bombing out either with either the "retail.santander.co.uk unexpectedly closed the connection." or it bombing me back to the login screen that I have to go to my parents home to do it!!!  Three / @JonathanB please when can this issue be sorted, its causing me huge issues with doing simple but important things such as banking, let along the damn inconveniences its causing between multiple websites.  Why has there been no updates when this is a big problem!!!!!!

[bytespider]

Seems really bad again for me again today after about a week of very minimal issues.

[Midnight54]

With AkiTaiyo's help, modified the other script slightly and ran it last several minutes, ssl errors being logged successfullly now.  Reddit for most part returns failures for some reason, but still gets SSL errors once in a while.  I suspect that if I increase the delay between each check that the SSL errors might increase

Mostly been working over VPN today as had lot of work to do so not tested much of actual real life browsing, but the issue is definitely still there

[Midnight54]

Increased the RequestInterval from 500 to 5000 to slow down between checks, and real-debrid is significantly worse for SSL failures right now - with 21 out of 44 requests SSL erroring, and 9 out of 44 so far for Santander

[Midnight54]

After running for some time with the much larger delay, almost 50% failure for SSLs on real-debrid.  Santander seems to have waves where it gets several failures then is ok for a while.

wikipedia I noticed shows there fine on each test, but I accidentally clicked a google result that was a wiki link and actually had the error in the browser, so the errors are still actually there but not captured