"Unable to validate certificate"

[Eion Robb]

https://textslashplain.com/2017/10/23/google-internet-authority-g3/ has
some info about the new Root CA and Intermediate CA certs that Google are
rolling out.  On Pidgin on Windows we don't include the new "Google Trust
Services" ca-cert, so it'll keep bugging you about it

On 7 January 2018 at 04:52, Phil Smith III <phs3stuff at cox.net> wrote:

> And they came back in the evening, though they're gone again now. Very
> weird. Well, maybe not: if it's ONE server, maybe load is higher in the
> evening, so that server gets pressed into action, goes idle eventually? If
> there's some sort of client-server persistence, then that might continue
> until that server goes idle again and gets dropped from the cluster. Of
> course I'm making this up as I go along, but it does fit the symptoms...
>
> -----Original Message-----
> From: pidgin at alexoren.com [mailto:pidgin at alexoren.com]
> Sent: Friday, January 05, 2018 5:27 PM
> To: Phil Smith III <phs3stuff at cox.net>; Pidgin <support at pidgin.im>
> Subject: Re: "Unable to validate certificate"
>
> I am still getting those popups.
>
> Why wouldn't Pidgin remember the accepted certificate?
>
> On 05/01/2018 10:04 PM, Phil Smith III wrote:
> > Saw that, but it *seems* slightly different.
> >
> > Weirdly, after getting them all evening and night (based on the number
> of popups I had to close!), I got a few throughout the morning and then
> they stopped. So maybe it really was a Google problem--maybe one server
> behind a LB with a bad cert?
> >
> > -----Original Message-----
> > From: pidgin at alexoren.com [mailto:pidgin at alexoren.com]
> > Sent: Friday, January 05, 2018 2:57 PM
> > To: phs3stuff <phs3stuff at cox.net>; support at pidgin.im
> > Subject: Re: "Unable to validate certificate"
> >
> > Similar issue here:
> >
> >       The certificate for 0.client-channel.google.com could not be
> validated.
> >       The certificate is not trusted because no certificate that can
> verify it is currently trusted.
> >
> > There's an issue on Bitbucket:
> > https://bitbucket.org/EionRobb/purple-hangouts/
> issues/168/certificate-issues
> >
> >
> > On 05/01/2018 3:48 PM, phs3stuff wrote:
> >> After running flawlessly for a while, I'm suddenly getting:
> >>
> >> Unable to validate certificate
> >>
> >> The certificate for clients6.google.com could not be validated. The
> certificate chain presented is invalid.
> >>
> >> This happens repeatedly at random intervals. Sometimes I get several of
> these dialogs at once, sometimes just one.
> >>
> >> I know what an invalid certificate chain is, just not what to do about
> it for this. Seems like the server is presenting the invalid chain, which I
> can't really fix anyway, eh?
> >>
> >> Ideas?
> >>
> >> Windows 7, fully patched; Help/About says:
> >> Pidgin 2.12.0 (libpurple 2.12.0)
> >> Unknown
> >>
> >> (what's the "Unknown" about??)
> >> And I'm using the Hangouts plugin.
> >
> >
>
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