While installing moodle not able to complete database settings
What to fill in Database port
Moodle-Learning-Management-System Installing-Moodle-on-Local-Server 07-08 min 40-50 sec
Answers:
This is quite an old answer on Moodle forum, but I think it is still valid:
Link to the answer: https://moodle.org/mod/forum/discuss.php?d=254552#p1104213
It says: "Unless you changed the defaults setting up MySQL (which you would know about) leave that blank to accept the default (which is 3306 if you are interested)"
Error: Database connection failed
It is possible that the database is overloaded or otherwise not running properly.
The site administrator should also check that the database details have been correctly specified in config.php
Warning: mysqli::__construct(): (HY000/1045): Access denied for user 'moodle-st'@'localhost' (using password: YES) in C:\Moodle\server\moodle\lib\dml\mysqli_native_moodle_database.php on line 79