Camera returned from Nikon yesterday, 7 weeks and about 3 days after I mailed it in for service. Call it 7 weeks even because the New York facility was down 3 days for the hurricane.
It isn't fixed. Ordinary flash seems to work but commander mode doesn't command.
The on-camera flash, when up in commander mode, emits a dim flash about every 10-20 seconds. Metering was on but I was not touching the shutter button. Single shot or Ch mode, same thing. Is there any mode in which that is normal behavior?