We have been having a problem with the bluetooth.

Error Message: Unknown system error (Miscellaneous error).

We have 2 NXT's it came up on one, so I tried the other an it worked again with bluetooth, but now neither are working and it requires a wired connection now for it to work.

I have tried redownloading the firmware on the NXT's and reinstalling the RobotC Software on the computer to no success

Does anyone have an idea how to fix this?

Thanks!