macOS Sierra prompts for a password for network drives with initial startup. In Sierra, an attempt to mount a network drive results in the authentication dialogue, this was not true in Mac OSX (El Capitan, Yosemite, etc.) once the password was in Keychain Access.
Is there a work around to bypass this dialogue?
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Bill B
I've heard about this from another source. They didn't have a work-around.
But one thing you may want to consider is to simply not start up your Mac at all -- in other words, don't shut it down. I never shut down any of my Macs. The Mac Pro on my desk hasn't been shut down since the last time I moved it a year ago. There's really no reason to. Let it just go to sleep and then wake it up. In fact, your Mac does a lot of maintenance tasks while "sleeping" that makes it work better when you are using it. Not to mention if you do online backups like I do then it is handy to have it do that at night.
Is there any reason you need to shut down and start up often enough to have these authentication dialogs become an issue?