"Unable to validate certificate"

[Phil Smith III]

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.
> 
>