crypt32 errors and SSL problems

We have a .NET app that was logging the following error this morning
when trying to communicate with one of our partners:

System.Net.WebException: The underlying connection was closed: Could
not establish trust relationship with remote server.

For roughly the same duration (about 4 hours this morning from 4 am
Central to 8 am Central), I see crypt32 logging the following three
errors every so often. I'm trying to understand if the crypt32 errors
were what caused the other SSL errors in our application (and why/what
it was doing), or whether this was just a co-incidence. Both problems
go away about the same time (within the same half hour or so). Any
insight would be appreciated.

Event Type: Error
Event Source: crypt32
Event Category: None
Event ID: 11
Date: 6/5/2007
Time: 4:35:50 AM
User: N/A
Description:
Failed extract of third-party root list from auto update cab at:
<http://www.download.windowsupdate.co...ate/v3/static/
trustedr/en/authrootstl.cab> with error: A required certificate is not
within its validity period when verifying against the current system
clock or the timestamp in the signed file.
---------------------------------------------------------------------------------------------------
Event Type: Error
Event Source: crypt32
Event Category: None
Event ID: 3
Date: 6/5/2007
Time: 4:35:51 AM
User: N/A
Computer: MENTISTMI01
Description:
Failed auto update retrieval of third-party root list cab from:
<http://www.download.windowsupdate.co...ate/v3/static/
trustedr/en/authrootstl.cab> with error: 403 (HTTP Response Status)

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.
---------------------------------------------------------------------------------------------------
Event Type: Error
Event Source: crypt32
Event Category: None
Event ID: 3
Date: 6/5/2007
Time: 4:35:51 AM
User: N/A
Computer: MENTISTMI01
Description:
Failed auto update retrieval of third-party root list cab from:
<http://www.download.windowsupdate.co...ate/v3/static/
trustedr/en/authrootstl.cab> with error: This network connection does
not exist.


For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.

Thanks,
Amol

amol <> wrote:

> System.Net.WebException: The underlying connection was closed: Could
> not establish trust relationship with remote server.

Just a thought - does this PC have a correct timezone setting?

--
Robin Walker [MVP Networking]

On Jun 5, 3:18 pm, "Robin Walker [MVP]" <r...@cam.ac.uk> wrote:
> amol <amol...@yahoo.com> wrote:
> > System.Net.WebException: The underlying connection was closed: Could
> > not establish trust relationship with remote server.
>
> Just a thought - does this PC have a correct timezone setting?
>
> --
> Robin Walker [MVP Networking]
> r...@cam.ac.uk

Yes it does.