I am using a synology 713+ nas server, and just started using MySQL with it.

I created a database, a table and a user with '%' as host, so it should be able to connect from anywhere.

Using the local ip to the nas-server, I am able to connect to the database without a problem. But when I try using the external ip, I get the following message instantly;

'Unable to connect to any of the specified MySQL hosts.'

In the 'my.cnf' file, I have disabled 'skip-networking' and set 'bind-address' to 0.0.0.0.

I am unable to see the 'bind-address' variable in phpMyAdmin, so I am unsure if it is actually using it.

If I try to connect while the database is offline, I times out after 30 seconds, but when it is online it refuses instantly, which tells me that it is able to find the server, but not allowed to connect.

What in the world is going on, and what can I do?

Edit:

All ports on the nas are open, and my router is forwarding port 3306 to the nas.
Restarting mysql and the whole nas did not work.

I suspect the 'bind-address' variable is not being used...