Attaching documents through Service Desk Manager is no longer working in Internet Explorer after a Windows Update.
Windows fix KB3161639 Update added new cipher suites to Internet Explorer and Microsoft Edge in Windows. One of the changes was a more restrictive Diffie-Hellman cipher which causes servers using weak Diffie-Hellman ciphers to not load due to security concerns.
Service Desk Manager 12.9, 14.1
Tomcat configured with SSL
Follow instructions given in KB000072955
MS Article: KB3161639