Application crash occurs if QueryTimeout is used when using a SQL Server mirrored database and the network is disabled with the ODBC SQL Server Wire Protocol driver
Connecting to the primary of a SQL Server mirrored database, when the network is disabled on the primary, there is a hang when using the Connect for ODBC 7.0 SQL Server Wire Protocol driver. If the "QueryTimeout" connection option is set to cause the query to return sooner, the application crashes.