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.

[hughesceri]

The issue seems to have gone away for me (for now at least). I bought a TP-Link mesh network (Deco X50 AX3000) and the issue went away as soon as I connected through that and not directly to the Three router, so I assumed it had something to do with it. There was also a post a while back from someone seeing the same issue go away with a similar setup.

Anyway, I've just reconnected my laptop back to the Three router directly and I'm still not seeing an issue. So either the issue has been fixed for me, or the presence of the TP-Link kit on my network is doing something to mitigate it.

[bytespider]

I run an Eero mesh network and it still happens. I'm pretty sure the issue happens the other side of the router, but I dont have any other 5G router to test that,

[Chrisrkilv]

I've been having the same issue for months. Coincidentally, since my first free 3 months ended and I could no longer exit the contract... I logged a complaint with three and never got a call-back or any contact what so ever. They have just closed my complaint due to "customer being uncontactable". I've had no calls, no emails, no text messages! 

Complaint was logged 1st of March so I think it's time to take this to the ombudsman.

[fashric]

Mine cleared up for a few days, then the connection went down, had to restart the router and bam all the connection issues back again.

[AkiTaiyo]

This has started happening to me over the past few days. 
I'm using GL.iNet GL-X3000 and APN 3internet. 
Been with Three for home broadband for a few years and never had this problem until now.

[MP]

Spoke too soon, the issue is back on a Three Business connection. 
Not as often but it has started happening this past 2-weeks on various different websites.
Still totally unacceptable.

[wgen]

Issue has now returned as of this evening...

[wgen]

The issue has gone away for me since yesterday. Anyone else experienced the same improvement?

[bytespider]

I have periods where it gets better then just as quickly stops. I managed a whole day without issue a couple weeks ago.

[fashric]

Nope, still as bad as ever.