@isaacshaven
If you have same problem while trying to connect from Joomla's homepage,I can see the forum with the bridge, but it is telling me that I have incorrect username/password.
then the problem is not related to the bridge . (All pages of joomla remain unaffected, unless you visit the forum)
@bdaoust
"site name" is a setting that have no impact about how everything work (just cosmetic, would say).
Please check the FAQ, especially question "I can login in Joomla but not in Phpbb. What's wrong ?"