Database Connection error by giving specific IP address
Definitely MySQL remote access would be blocked.

You can edit MySQL conf to enable it.
Loginto your remote db server and edit main configuration file.

vim /etc/my.cnf (in case of Linux)

Comment out skip-networking by adding # before it, should be located under [mysqld] and update bind-address for the desired IP you are using as connection host.

[mysqld]
...
...
bind-address = 192.168.85.10
#skip-networking