Author: Bob Lin

Situation: The Outlook keeps popup for the password after enabling the MFA. Enter correct domain password doesn’t work.

Troubleshooting: you may need to create a app password by following this link:

How to create Microsoft app password in Office 365

this password can be used for all email in different devices.

Here are some other suggestions:

•  Run the Microsoft Support And Recovery Assistant For Office 365. All IT support personnel should have this page bookmarked.

•  Click Cancel on the password prompt. Outlook might immediately connect normally. If Outlook says “Need password” at the bottom, click on those words. For at least one client, Outlook then immediately switched to “Connected” and hasn’t prompted again since then.

•  Open Control Panel / Credential Manager and remove all passwords related to Office or Office 365.

•  Create a new mail profile.

•  Ping outlook.office365.com. One Reddit contributor thought the password prompts came up when pings fluctuated up to 400-500ms.

•  Add some registry values to control Autodiscover, per this Microsoft support article.

•  Install the most recent updates for the Office programs (in an Office program, click on File / Office Account / Office Updates).

•  Change the password on the mailbox.

•  Disable the Microsoft Account Sign-In Assistant service, if it’s running.

•  Do a Quick Repair of the Office programs.

Situation:  the client has Azure AD Connect 1.1.819.0  installed on a server running windows 2012 R2 to sync their  on-premise domain with Office 365. recently, they are noticing the Azure AD Connect Health Sync Monitoring Service is always running high CPU usage.  

Troubleshooting; 1.   If you have installed KB4054566 is .NET 4.7.2, you may try to uninstall it.

2. The temporary solution is disable Azure AD Connect Health Sync Monitor  service.

3. The better solution is upgrade Azure AD Connect 1.1.819.0 to latest version.

Situation: After enabling MFA, some users have a problem to access email from Android phone or your home computer. Whenever you enter the domain password, it keeps popup for the password.

Resolutions: 1. For the user, you may need to create a app password from office 365. Please refer to this page: http://www.howtonetworking.com/blog/2018/10/08/how-to-create-microsoft-app-password-in-office-365/

2. If the user is using Android phone, please try Microsoft Outlook app. Or download or install Google Authentication app.

3. For administrator, you can disable and re-enable MFA.

Situation: The client has a windows 2012 R2 server. They check Reconnect at sign in mapping a network drive. However, it doesn’t work. Whenever restarting the server, mapping drive shows red X. They need to re-map it.

Troubleshooting: 1. Disable Fast Logon Optimization on the client. To do so, please go to Computer Configuration\Administrative Templates\System\Logon\Always wait for the network at computer startup and logon

Situation: After the client forced everyone changing their password, one of user accounts keeps locking.

Troubleshooting: we find they use the account on Canon One Touch feature. Whenever people scan using One Touch, it doesn’t scan and eventually locks the account. Changing the password in Canon printer fixes the problem.

Situation: The client setup Canon Printer One Touch feature. Suddenly, it doesn’t work and get error that can’t scan to the shared folder.

Troubleshooting: The company just forced every user to change the password. We need to go to Canon Control Pane or Web utility to change the user credentials. To do that, go to Address Book >Address List >One-Touch.

Situation: After enabling MFA, some iPhone work for a while and have a problem to open the email. It keeps popup for entering the password or saying incorrect password.

Resolution: 1. Got to Azure MFA to disable and re-enable the MFA. Wait for 10 to 15 minutes.

2. Set up two-factor authentication for your Apple ID.

3. Create app password by following this how to: How to create Microsoft app password in Office 365

Situation: the client uses Windows 10. Randomly his computer doesn’t recognize USB drive with this message: USB not recognized

Resolutions:

Method 1
Reinstall device drivers
Download the latest drivers for your USB device and install it. If there are no new drivers available just continue with the next step.
Open Device Manager. You can do that by pressing Windows Key + X and choosing Device Manager from the list.
USB keyboard not working on Windows 10
Locate the device driver and right click it.
Choose Uninstall device to remove the driver.
USB not working Windows Code 43
Restart your computer.
Method 2
Change Power Management settings for USB Controller
Open Device Manager.
Find Universal Serial Bus controllers section and expand it.
Right click each driver named USB Root Hub and select Properties.
USB not working when plugged in
Go to Power Management tab. Make sure that Allow the computer to turn off this device to save power is not checked. If it’s checked, uncheck it. Click OK to save the changes.
USB not working Toshiba
Repeat the process for all USB Root Hub drivers.
Restart your computer.
Method 3
Uninstall the USB Controller
Open the Device Manager.
Find Universal Serial Bus controllers and expand it.
Right click the first driver in the Universal Serial Bus section and click Uninstall.
Repeat the process for all drivers in the Universal Serial Bus section.
Restart your computer.

Situation: The userA has full permissions and send as permissions of another userB. However, when userA tries to send email as UserB, userA receives undeliverable message: This message could not be sent. You do not have the permission to send the message on behalf of the specified user. Error is [0x80070005-0x000004dc-0x00000524].

Troubleshooting:

1. With Outlook open, go to Send/Receive>Send/Receive Group, download Address Group.

2. Repair Office.

3. Reset Outlook profile.

4. Deleting everything within the “Offline Address Books” folder. To do that, close Microsoft Outlook and try deleting everythingwithin the “Offline Address Books” folder. It will re-populate.

In Windows 8 it is located here: C:\Users\Username\AppData\Local\Microsoft\Outlook.
5. Uncheck the Use Cached Exchange mode option in the Outlook 2016 client for a test.

Situation: The user can’t map one of LAN shared folders over VPN after changing his password. The error message is You do not have permissions to access \\servername\fodlername. The same user using other VPN client doesn’t have this issue.

Troubleshooting:

1. Check the network status: we find the network location is public. However, switch it to Private network doesn’t fix the problem.
2. Disable Symantec Endpoint Protection or other security software for a test.
3. Use command lines to troubleshoot it, for example, net view \\IPaddress\shared folder name. Or Telnet ip address port 445.
4. Check “Control Panel\All Control Panel Items\Network and Sharing Center\Advanced sharing settings”. Make sure Network discovery is turn on.
5. If NetBIOS over TCP/IP is not turned on (enabled), turn it on.
6. If the Computer Browser service is not started, start it.
7. Enable SBMV1 by going to Programs and Features.
8. Check event view on both computer for any error message.
9. Mapping to different computer or different shared folders is working.

Resolution: 1 Mapping the same shared folder using different username.

2. If the 1 works, we can go to Credential Manager (Control Panel\All Control Panel Items\Credential Manager) to delete the old credential or create a new credentials.