I'm trying to change the port to my teamspeak 3.

I've tried to use this command on the serverquery:

use 1
login serveradmin password
use 1
serveredit virtualserver_port=9988
serverstart sid=1
It gets stuck at serveredit virtualserver_port=9988 and returns me this message:

error id=2568 msg=insufficient\sclient\spermissions failed_permid=9023

I've read around and from what I've read on these forums you need to either have 100 permission for i_permission_modify(?) or group ID 2. Root Admin is currently (6).

How can I get this so I am able to change the default port?