This is the
only thing I could find on Google about this problem.
Probably means more to you than it does to me.
quote:
REPORTED PROBLEM
Users connecting to LCS 2003 configured for TLS with Windows Messenger 5.0 could connect successfully. After upgrading to Windows Messenger 5.1 they would fail the connection with the error:
A TLS connection could not be made. Please wait for your network administrator to correct this problem, and try again later.
CAUSE
The cause of this problem is with the Certificate Revocation List (CRL) and how each client handles it. Windows Messenger 5.0 will not treat a failure to get the CRL as fatal but the Windows Messenger 5.1 client will. If you capture the client logon with Network Monitor or Ethereal then you can see the LDAP or HTTP connection attempt.
http://blogs.technet.com/toml/archive/2005/03/25/402318.aspx
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