Thank goodness the other people on here, NOT INTUIT, have the answers because INTUIT hung up on me twice over this exact issue, error 2107. After walking me through their updates and having no answers, they just hung up, twice!! They didn't call me back after my request. I was so lost! I was freaking out that I had to do payroll and Intuit just had no answer. So horrible, worst customer service.  

Yes, the answer is to TURN WORKFORCE OFF (Manage Payroll Cloud Service.)  Problem fixed. Apparently that's not a popular fix for the Intuit customer service people to tell you when you desperately need answers.

Shame on you INTUIT.  I used to think your products and service was good ( 15 years ago ) but your not the same company anymore.