New Bluesmirf Silver cannot be detected by computer

I have a bluesmirf silver connected to an Arduino wee. When I power the setup, the bluesmirf’s red light turns on, but my computer is unable to detect it. If I use a bluesmirf gold instead the connection can be established. Is there possibly any settings that can be made to fix this problem?

Probably you have to put it in server mode - see chapter 9 of the BG203. Worked for me (on 3v3 - not on 5V)