https://codex.bbpress.org/import-forums/vBulletin/
What version of vBulletin are you converting from?
What part is it stuck on or is it just not starting?
That is the key is to ensure you have the correct values for each of these:
Select Platform – vBulletin
Database Server IP or hostname
Database Port Use default 3306 if unsure
Database Name Name of the database with your old forum data
Database User User for your database connection
Database Password Password to access the database
Table Prefix
Have a look in your vBulletin config file which should be in your vb install /includes/config.php
I’m having the exact same issue, but instead of importing the vbulletin database directly from vbulletin server, I have exported the vbulletin database as a sql file and imported it over to a new database that I have created on my server where my WordPress and BBPress installation exist. I have entered the following to each of the import fields:
Platform: vBulletin
Database Server IP or hostname: localhost
Database Port Use: 3306
Database Name: [entered correct db name]
Database User: [entered correct db user]
Database Password: [entered correct db password]
Table Prefix: blank
Once I click the start button, it will show “Starting Conversion” but just hangs there, any idea what I’m doing wrong?
I am hosted on 1&1. If you are too the hostname must probably include the socket.
Besides that, are you sure you have no table prefix? My Vbulletin tables all start with vb_
Fabian