Re: Connector hangs during login

[Charles Bell]

Have you tried starting your server with --skip-name-resolve?

BTW, a complete and accurate description of the unauthenticated user problem is here:

http://www.pythian.com/blog/what-is-an-unauthenticated-user/

The author is a MySQL Jedi Master. :)

Related link (still relevant for newer versions):

http://dev.mysql.com/doc/refman/5.0/en/host-cache.html

You can also try to add the IP of the Arduino to your hosts file in %systemroot%\system32\drivers\etc\.