"Unable to connect to database" error in 3.3
I upgraded my tikiwiki to 3.3 on november 1.
The next day when I tried to access the site, it threw the error "Unable to connect to database". I changed the mysql password for my hosts and in the db/local.php file and tried again - it worked.
However, every 6 days or so from that time it has given the error while trying to access the site. If I change the passwords like I did above, it works again, only to give the error a few days later.
Is there a condition that is requiring me to change my password every few days, or what is wrong, and how can I solve it?
Thanks.