UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10176.76.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.190 Safari/537.36
Platform: 10176.76.0 (Official Build) stable-channel auron_yuna

Steps to reproduce the problem:
1.Turn on computer by lifting lid or hitting power button
2.Try to type password in and everything on page gets stuck for 30 sec.
3.After the 30 sec. wait, sticking will stop, and everything will be fine. 

What is the expected behavior?
I "expect" my Acer Chromebook 15 CB5-571 to turn on quickly like it used to and not stick at sign-in for 30 sec. or more. It is only about 2 yrs. old.

What went wrong?
A couple of months ago, it seems after an update, the sticking at sign-in, after turning on, started. Every time I turn on the computer to sign in, the cursor will stick when I try to type in my password, and everything on the page will stick for a good 30 sec. After the 30 sec., everything is fine. I have tried every channel and have been to Developer Mode and back, still the sticking at sign in. I have tried turning off the internet, still the sticking. I have tried disabling the extensions to no avail. When I do Power Washes or use the Recovery Tool, the "Welcome" screen sticks for some seconds too. Even after the newest update, where now I can get the Play Store on Stable Channel, my sign-in sticks. I have pressed the refresh button and the power button for a fresh start-up, but most of the time sign-in sticks.

Did this work before? N/A 

Chrome version: 64.0.3282.190  Channel: stable
OS Version: 10176.76.0
Flash Version: 28.0.0.161 /opt/google/chrome/pepper/libpepflashplayer.so

I have been to the Chromebook Community and the Acer Community. They both said to post this issue here. I have already posted this same issue two times with no helpful response. I am willing to go to Developer Mode and type a command in the shell if that's what it takes. I have been trying to fix this for a couple of months! Please help if you can.