"Connection Error: Unable to Connect to remote host. Unable to establish security context for this session Num=0, Source="
In most cases, transactions run by credit card work fine.
TSYS is looking in to the issue but this is a good example of why RMS users should be looking at Card Defender since Card Defender takes out the old EDC settings in RMS (which is really not secure when it comes to protecting card holder information) and replaces EDC with payment terminals that meet or exceed payment industry security requirements (and still interface directly with RMS).
As a bonus, Card Defender also allows retailers to accept Chip Cards, NFC Payments like Apple Pay and Google Wallet, and even works with the low cost replacement point of sale programs for RMS like Cloud Retailer and Retail Management Hero.
More information on Card Defender can be found here or by contacting RITE at email@example.com or 888-267-7483.