Well... I've got an SM Pro Audio condenser mic (since like a year ago) and a Tube ultragain Mic200 Behringer preamp (2 years).
Latelly I've been having a problem with the mic or preamp and i don't really know wussup. When i'm recording sudenly the preamp stops receiving sound from the mic. I thought it was the cable or something like that, but today I realised that if I turn off the phantom power (+48V button on the pre amp) and then i turn it on again, the mic works again.

I don't really know wussup with this... but it ain't workin right and maybe someone here knows wussup and can help me.
I really appreciate it!!