A Macbook user just raised an issue with me regarding they can't plug in a USB drive to ttransfer files.
I do know we have a restriction profile that stops iCloud, imessage. I don't know we had a restriction on USB connectivity.
If it a setting in JSS, where would I find this (and disable it)? We're using JSS 9.81.
If you plug a USB mouse into his Mac, does it work? Does the drive mount on another machine?
USB ports are managed by an extension file - /System/Library/Extensions/IOUSBMassStorageClass.kext
If it has been deleted, then the USB ports will be disabled.
There is a Configuration Profile that can disable external Hard Drives.
There's also a setting in the restriction payload for config profile that can prevent ejecting external drives, it's in the same area as the restriction fo "go to folder", "connect to sever" etc.
Could be worth checking in there as well.