Problem connecting netbeans to mysql

[smacker]

hello all ,
i'm trying to connect the two together ,
the sql server is running and it's all good but when i try to connect on
netbeans-serveices-databases - new connection wizard
it gives me an error :
"cannot establish a connection to jdbc:mysql://localhost:3306/lib using com.mysql.jdbc.driver (access denied for user'root'@'localhost'

in mysql everything running smothly
any ideas ??
thanks to all the helpers

[Tolls]

Look to me like your MySQL is locked down.
I'd look in the MySQL docs for allowing connections for a certain user/location.

[smacker]

well i don't know what happend but i reinstalled mysql completly and it works i think when i did a reset something happend
not sure what it's very weird

[Tolls]

MySQL can be setup to not allow any connections except for those in a list of exceptions, which would map usernames and location (address).
Attempting to login to such a setup will fail if you are not a valid user, or are a valid user, but not connecting from a valid location.
It's quite easy to install it with this switched on, by accident.