We are having the same problem. It is also affecting all past years of the program. I can sign in at my home, but at work we cannot. Different internet service providers. I have tried all of the fixes listed that I could find in the forums. No luck as of yet. I am going to bring the work computer home today to at least back up prior years files. And install 2019 program.

Any suggestions would be greatly appreciated.

We have been with Proseries since tax year 2000. Never have had this problem before.

Exact error wording is: Sign in completion failed. The remote name could not be resolved. 'oauth.platform.Intuit.com'