Nsurlsessiond spiking my internet quota

Are all the boxes unchecked in the iCloud preference pane?

I was having the same issue...Constant data sending/receiving from nsurlsessiond on my iMac. I remembered I had 109 photos placed on iCloud a couple of years ago for Apple TV slideshows, which I never used... I used Apple TV to view, and remove those photos. 20 minutes later nsurlsessionsd quit sending/receiving data from my iMac...

Perhaps a coincidence...don't know. In any case, I don't know why it suddenly seemed to need to send/receive data (photostream has always been turned off on my iMac)

Bob

I've had the same issue of bandwidth getting hogged, and it's nsurlsessiond that's doing it. I got Little Snitch, per another user's advice (see Nsurlsessiond ISNT GOING AWAY), and ran through all the possible things to block, until rather far down the list, nsurlsessiond showed up, and it was wanting to connect to us-ore-00001.sc.amazonaws.com. I clicked on Deny and Forever. Since then, every thing is running fine. nsurlsessiond does have two other icloud.com addresses that it's allowed to access, so as far as I can tell, my iCloud services are still OK.

This matches up with what my ISP told me was happening: The entirety of my upload bandwidth was being sucked up by uploads to an Amazon site. (***? What is it they're pulling off my computer??) When the upload bandwidth is used up, it affects the downstream speed as well. They said if I couldn't figure out what was happening, one possible solution was to change my plan to one that allows more upload space. But a technician who stopped by the house said that might not help; that places like Amazon will just keep sucking data as fast as possible, up to the limit allowed. Which will *kill* your downstream speed, no matter what plan you're on. Good thing my ISP doesn't have quotas yet.

It seems to me that there's a BUG, not a feature, in this part of the OS. I've only experienced it since this last update. FIX IT, Apple. You're about to cost me $70 for a family license for Little Snitch, to fix something that shouldn't be happening. And it's going to cost people with quotas maybe a heck of a lot more.

After a week on the road, with my iMac turned off, I returned, turned the computer on, and nurlsessiond is back to it's naughty/downloading behavior. So, my "solution" of removing pics from the 'cloud' apparently was a red herring...

sigh...

Bob

This is iCloud drive syncing itself. It uses the amazonaws.com domain for the bulk transfer. You should be able to disable it by unchecking iCloud Drive under the iCloud icon in System Preferences.