Device verification extension troubleshoot sync issues

Problem

Endpoint verification sync issue on Window and MacOS.

Windows

Determine if an S4U task is configured:
1. Lock the device screen.
2. Within 15 seconds, unlock the device screen.
3. Within 15 seconds, in the Chrome browser toolbar, click Endpoint Verification > Sync now. If the sync is successful, the error is likely caused by an S4U task.
Identify the S4U tasks:
1. Open PowerShell and run the following script:
```
Get-ScheduledTask | foreach { If (([xml](Export-ScheduledTask -TaskName $_.TaskName -TaskPath $_.TaskPath)).GetElementsByTagName("LogonType").'#text' -eq "S4U") { $_.TaskName } }
```
2. If the output includes one or more lines containing a task name, fix the problem
3. On your Windows device, open Task Scheduler.
4. Scroll to Active Tasks.
Find the tasks from the output and do the following for each task:
1. Double-click the task.
2. Click Properties.
3. Clear the Do not store password checkbox and click Ok.
4. Lock the device screen and then unlock it.
Within 15 seconds, in the Chrome browser toolbar, click Endpoint Verification > Sync now.

MacOS

Sign out of your computer and then sign in again. If the issue persists, complete the following steps:
On your Mac, open the Keychain Access app.
In the Default keychains pane, click login.
- If the icon is locked, right-click login and then click Unlock Keychain login.
Click the Passwords tab.
In the list of passwords, double-click Endpoint Verification Safe Storage and click Access Control.
Select Allow all applications to access this item and click Save changes.
In the Chrome browser toolbar, click Endpoint Verification > Sync now.
If the sync is unsuccessful, do the following:
In the list of passwords, right-click Endpoint Verification Safe Storage and then click Delete Endpoint Verification Safe Storage.
In the Chrome browser toolbar, click Endpoint Verification > Sync now.