Changed IP of master control panel and now none of my remotes can connect

All my remotes are failing. What do I have to add to my standalone master cp so that my remotes can get their updates. Is there a company that offers support of ispconfig for a fee? I am over my head on this and need some help as I can not get any updates to my servers.

PHP Warning: mysqli_connect(): (28000/1045): Access denied for user 'ispcsrv4'@'ispmail50.webguyz.net' (using password: YES) in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 79
PHP Warning: mysqli_connect(): (28000/1045): Access denied for user 'ispcsrv4'@'ispmail50.webguyz.net' (using password: YES) in /usr/local/ispconfig/server/lib/classes/db_mysql.inc.php on line 85
PHP Warning: mysqli_connect(): (28000/1045): Access denied for user 'ispcsrv9'@ 'ispweb52.webguyz.net' (using password: YES) in /usr/local/ispconfig/server/lib/ classes/db_mysql.inc.php on line 85
PHP Warning: mysqli_connect(): (28000/1045): Access denied for user 'ispcsrv9'@ 'ispweb52.webguyz.net' (using password: YES) in /usr/local/ispconfig/server/lib/ classes/db_mysql.inc.php on line 85
PHP Warning: mysqli_connect(): (28000/1045): Access denied for user 'ispcsrv9'@ 'ispweb52.webguyz.net' (using password: YES) in /usr/local/ispconfig/server/lib/ classes/db_mysql.inc.php on line 85
PHP Warning: mysqli_connect(): (28000/1045): Access denied for user 'ispcsrv9'@ 'ispweb52.webguyz.net' (using password: YES) in /usr/local/ispconfig/server/lib/ classes/db_mysql.inc.php on line 85

 

UPDATE: got all but one server that I messed with the pw up and running
Where I screwed up was I was in a middle of a migrate and when I set up the new Target and remotes I was using:
dotcpx.webxxxxxxx.com
Since the migration was finished I changed the DNS for the new master to:
dotcp.webxxxxxxxx.com
and changed the old master to dotcpx.webxxxxx.com
Because I did that the remotes were going to the old server and not the new server
I had to add a /etc/hosts entry to all my remotes
72.249.xx.130 dotcpx.webxxxxxx.com dotcpx
after restarting networking everything started to fly right except for one server that I had manually gone to the ispcsrv user on the master and change the password and screwed it up.
What is the password supposed to be? Once I figure out what its supposed to be I can change the password back.

 

So where do the remotes store the login and password they send to the master cp? If figure out how to change the MySQL users pw's but not sure what the correct pw's are supposed to be. I assume the remote stores it somewhere.
I looked in /var/local/ispconfig/interface/lib/classes/db_MySQL.inc.sh but only saw as below. Am I supposed to set a value for $dbPass ?:

class db extends mysqli
{
/**#@+
* @access private
*/
private $_iQueryId;
private $_iConnId;
private $dbHost = ''; // hostname of the MySQL server
private $dbPort = ''; // port of the MySQL server
private $dbName = ''; // logical database name on that server
private $dbUser = ''; // database authorized user
private $dbPass = ''; // user's password
private $dbCharset = 'utf8';// Database charset
private $dbNewLink = false; // Return a new linkID when connect is called again
private $dbClientFlags = 0; // MySQL Client falgs
/**#@-*/
public $show_error_messages = false; // false in server, true in int

 

Found them in /usr/local/ispconfig/server/lib/config.inc.php
Thanks Florian!