Sign in To Tableau Server from Tableau Desktop Fails with "(errorCode=16)"

Option 1

1. Close all instances of Tableau Desktop and Tableau Prep
2. Open Tableau Desktop, navigate to "Help" > "Settings and Performance" > "Clear Saved Server Sign-Ins"
3. Log into Tableau Server from Tableau Desktop

Option 2 - Clearing Tableau Desktop logs

1. Make sure that Tableau Desktop is not running. Close all the open Tableau Desktop windows if there is any.
2. Navigate to C:\Users\<User Name>\Documents\My Tableau Repository
3. Delete 'Logs' folder. The new "Logs" folder will be created in the My Tableau Repository folder upon starting the Tableau Desktop.

Option 3

1. Make sure that "Allow clients to automatically connect to Tableau Server." is checked on Tableau Server settings.
2. In the site menu, click Manage All Sites, and then click Settings > General.
3. Under Connected Clients, check the option Allow clients to automatically connect to Tableau Server.
4. Click Save.