This is the app I'm talking about. We've been using it for quite a while, at least 2 years, with no problems whatsoever. Then a about a month or so ago, after I upgraded my LG G4 to Marshmallow, it stopped working. Getting errors like this: At first the "Authorization failed" message made me think my credentials were incorrect for the access to my home pc. However, I verified that the app can access it just fine, as it lets me browse the network shares and select the folder I want it to back up to, and when I tell the app to test the connection, it states it is connected. So then I determined the error is saying that it doesn't seem to have permission to access my photos. So at first I thought this was a security problem with Marshmallow not allowing the app to access my SD card. However, I tested it with pictures on the internal storage, and get the same error. Also, to rule out a problem with Marshmallow, I set it up on my old Galaxy S3, which I think is only running Jelly Bean, and it gets the same problems. So now it just seems the app is broken. I have installed the app fresh, actually on a new LG G4, as I just replaced my old one which was having Wifi problems. So it's the latest version of the app, on a brand new phone. And an old phone. Nothing works. Anyone use this app, and can verify it is still working? Or ideas how to fix this?