We have recently noticed an increase of tech support questions regarding JBLS and private server connections to Battle.net -
Please remember, SB does not work on most PvPGN servers (or not without further modifications) due to PvPGN not supporting the BNCS protocol correctly. Until they fix that you're out of luck because we only support the official Battle.net servers.
Also, for a current list of official and trusted JBLS servers, please visit this link. As always, if you have additional questions regarding this, check out our Tutorial and FAQ's section listed here.