we've run into an issue connecting with your computer and can't launch turbotax

Just installed Deluxe 2019 + State, bought from Amazon download.

After installing, then updating (1/13/2019 update), then launching turbotax, it comes to an activation screen.

All of the above works fine.  Entering my license, I get 

"we've run into an issue connecting with your computer and can't launch turbotax"

error message -- no retry, just an option to quit. 

 

Does anyone know what this error message really means, or have a solution?  I've read the help articles saying to reboot your router, turn off virus protection, reset ipconfig,  which I've tried even though these are clearly not the problem (wireshark shows turbotax communicating with the servers just fine).   This is extremely frustrating.  I tried downloading turbotax directly from intuit instead of amazon, uninstalled and reinstalled,  no luck.