Open IE and click Help, About Internet Explorer and look at the Cipher Strength. It should be 128 bit. If the Cipher Strength is anything less then 128-bit, download and install the Internet Explorer High Encryption Pack.
Open IE, go to Tools, Internet Options, Advanced and scroll to bottom of list. The SSL and TLS options (all versions) should be checked.
Delete Cookies, Delete Files and Clear History in Tools, Internet Options, General tab. (Deleting Cookies may delete some stored Internet passwords.) Check the Delete all off-line content checkbox.
Uncheck the box for Enable Third Party Browser Extensions in the Advanced Section (all other settings in Advanced Section are set to Default). Click Apply and close and open IE.
Configure Security settings for the Trusted sites zone in IE: IE, Tools, Internet Options, Security tab, select Trusted sites, Default Level. Sites, enter the address (URL) of the site in the Add this Web site to the zone: box, Add, OK, Apply.
Check Firewall/Network Configuration. Make sure that the SSL port (port 443) is open on your network/firewall (if you have any). There are many different Firewall/Network products, so we can't give set-by-step instructions. Check the documentation or help file of the product you use. If you are behind a broadband router, you may not need a firewall on your PC. One forum member fixed the problem by uninstalling Norton's Personal Firewall.
Clear the Secure Sockets Layer (SSL) slate and AutoComplete history: IE, Tools, Internet Options, Content tab. Under Certificates, click Clear SSL State. Click OK when you receive the message that the SSL cache was successfully cleared. Under Personal information, click AutoComplete. Under Clear AutoComplete history, click Clear Forms. Click OK when you are prompted to confirm the operation.