Sage 300 customers running Windows Server 2003 and XP may encounter compatibility issues with with UPS shipping.
Issue: Error message "The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel" may be received when rating, or processing UPS shipments.
Sage 300 (Accpac) customers, may encounter this error for the following reasons:
To resolve the problem, download and apply this hotfix from Microsoft to your Server machine: https://support.microsoft.com/en-us/kb/968730. A reboot is required after the hotfix is complete.
It is recommend that you migrate to a supported operating system and/or sever. Note: Microsoft ended support for Windows XP on April 8, 2014; support for Windows Server 2003 ended on July 14, 2015.
If you need guidance on moving to a supported Microsoft operating system, or data base, please contact us.