Lots of problems connecting and using my Nikon D5100 with 2.5.1.17 last night. Hangs during download then wouldn't connect (until reboot)
BackYard Nikon was able to connect and use the camera each time SGP hung or failed to connect (without rebooting).
logs:
https://drive.google.com/file/d/0B-ajT8x5IBeGMGppb0VSWHU2Sjg/view?usp=sharing