Event ID 36887 Schannel on Exchange Server

I am receiving the following error consistently on my exchange server and do not know how to start to diagnose the problem

Log Name: System
Source: Schannel
Date: 09/11/2011 11:09:23
Event ID: 36887
Task Category: None
Level: Error
Keywords:
User: SYSTEM
Computer: exchange.domain.int
Description:
The following fatal alert was received: 46.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event";>
<System>
<Provider Name="Schannel" Guid="{1F678132-5938-4686-9FDC-C8FF68F15C85}" />
<EventID>36887</EventID>
<Version>0</Version>
<Level>2</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8000000000000000</Keywords>
<TimeCreated SystemTime="2011-11-09T11:09:23.393174100Z" />
<EventRecordID>10708</EventRecordID>
<Correlation />
<Execution ProcessID="464" ThreadID="3340" />
<Channel>System</Channel>
<Computer>exchange.domain.int</Computer>
<Security UserID="S-1-5-18" />
</System>
<EventData>
<Data Name="AlertDesc">46</Data>
</EventData>
</Event>
Opened 10 Nov, 2011 @

After researching on the internet i am still none the wiser, any ideas?
IT_UserAsked:
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IT_UserAuthor Commented:
In the event id thread all that relates to my error is

TLS1_ALERT_CERTIFICATE_UNKNOWN (46)

Worked out from the PID that the process is lsass.exe

we don't use owa.

Can't seem to see what the solution is on technet, sorry - have run through a few of their ideas but to no avail.
0
Darius GhassemCommented:
What SSL do you use?
0
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IT_UserAuthor Commented:
sorry being thick, too close to home time, how do i find that out?
0
Darius GhassemCommented:
Do you have an SSL? Are you using SSL?
0
IT_UserAuthor Commented:
How do i find that out?
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Darius GhassemCommented:
You should know.
0
IT_UserAuthor Commented:
Taken over from last IT Manager who left without documenting anything so am trying to find my way round the network very quickly, this is a very small part of it but would appreciate any help as have not dealt with SSL before (with the exception of SSL/TLS encryption on my exchange server) i assume this is completely different.
0
Darius GhassemCommented:
SSL is SSL. Do you have websites that use SSL? Do you have applications that use SSL?

If you go into the Cert Management Console do you see SSL certs in the Personal Store?
0
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