couple of days ago,, played fine(RS 2014)..yesterday, went to play,,no guitar sound ( a slight crackling sound when strumming strings)...checked settings,checked file integrity,,all ok..tried different guitar ,,,no sound......tried original RS,,same thing......put a new jack on RS cable today as i,ve read they go bad,,,same thing,no sound..Figured the cable must,ve gone bad somewhere else...ordered a new one,hope it works...

anyone else come across this ?

Turn up your microphone sensitivity, or make sure your RS cable is set as your mic!  Check your settings in the game,  Check your volume knob on your guitar.  Recalibrate your guitar,  Make sure your RS cable isn't crapping out on you!  If it does, go up to Guitar center, or your local guitar shop.  Buy a knew Jack,  cut off the head of the old one, solder on the new one, bam!  I have no idea what your issues are, but I' bet if you trouble shoot what I've mentioned you'll figure it out!

already did all that ..no luck ..ordered new cable..thanks

Got the new cable today,,It works again !! so it was something other than the jack as i soldered a new one on the bad cable.

just some info......