Windows 7, msaccess 2010 32bit. My db has been running several years and connecting to BE mysql with a mysql connector dsn. Now I need to deploy it to more users in distant locations, so I am trying to connect using vba connection string for a dsn-less connection. I cannot get it to connect and it is throwing a 3151 error. The techs at this particular host assure me they can see nothing wrong from the server end. I have another db that is able to connect dsn-lessly to a different mysql db on the same server, so I don't think it is a firewall problem. I don't even know where to start solving this--also my research hasn't enlightened me as to the 3151 error. Thanks for any help!