Issue description: while rebooting the terminal or every one hour, the mail screen automally pop up one error window "Failed to update. Server information could not be obtained.Please manually update later", which greatly low down the product exprience.
Failed to update. Server information could not be obtained.Please manually update later
1. Open the terminal web portal with admin user
2. Go to "System Setting" and click "Netowork", then select "Network Address Book", and disable the synchronization feature.
Note: you can also disable this feature by remote.
The error is caused by the address book synchronization failure. and there is no address book server in the network, but this feature is enabled.