I got very weird ArithmeticOverflowException when opening an SQL connection to the underlying SQL database (stack trace included below). It doesn't make a difference which version of the server is used (I've verified MS SQL 2005/2008/2012/2014), error is still the same. All the newest updates and patches from Windows Update installed. OS is Windows 8.1 / 10 (same occurs on both systems). Server is installed locally and the connection is made via user and password. Connection timeout verified in range from 15 to 1000 sec. wh