Your mySQL login isn't the issue. The issue is stated just above that. Unknown column 'unit_flags2' in 'field list'This suggests a missing SQL update. I highly suggest you use the merge tool found in the DB Alpha source to create your update SQL. http://www.trinitycore.org/f/topic/1518-trouble-with-your-trinity-install-readme-1st-faqs/#entry9360 Make sure you are following the 4.3.4 guide thoroughly, specifically the part about populating the world db with TDB Full 4.3.4 and then continuing with the updates found at TrinityCore/TrinityCore_4.3.4_DB_Alpha