the way i understand it the 2016 program did convert your old data.
It just won't download new data from the banks.
That is a pretty common occurrence. It has to do with the banks and quickens security not being sure that the request is coming from the same place it was before due to differences in the program.
What you want to do is to hit ctrl A to pull up the account list
then select each account and click edit.
under the online services tab
there should be a button to reset the link. otherwise there will be one to remove or add it. either way what you want to do is either reset it or remove it and add it again or just add it if it is not shown as being there already.
it will ask for your bank id and password.
put those in and then you might have to select which account at the bank goes to which quicken account.
once you do that it should work again.
I am available to speak on the phone and log in remotely to do it with you if you would find that easier. But there is an additional charge for that.
Either way i am still here for you and will work with you until you are happy. I just ask that you please give me an excellent rating once it is working. That is the only way that i can receive any credit for my work with you.