Beth--Did you get new serial numbers from Sage's website? Then, if the Sage account number doesn't work, do what Dawn said about the account number. Also, there is a document about clean uninstall and reinstall SI on the workstation. I pulled my hair out at a client until I followed the directions **explicitly**. I did this on the workstation, not server, and that workstation had SI V2013 installed and I updated her to SI V2016. I probably have the KB articles in my car and if you need them, I'll run out there and get the KB numbers.