While googling for reconnect in the ODBC API I found this: http://dev.mysql.com/doc/refman/5.0/en/connector-odbc-configuration-connecti...
option 4194304: Enables auto-reconnection functionality. It seems like it fixes my problem. I will post it under the ITS too.
If you like, you could refresh the FAQ http://www.openldap.org/faq/data/cache/978.html regarding the RDBMS you're using. The FAQ-o-matic is interactive.
p.