Author: Bob Lin

1.Make sure you have a good backup and have latest Windows updates.

2. Check the health of the domain controllers on DC by command: dcdiag

3. Check where are located FSMO roles by these Powershell commands:

Get-ADDomain | Select-Object InfrastructureMaster, RIDMaster, PDCEmulator
Get-ADForest | Select-Object DomainNamingMaster, SchemaMaster

Example:

Windows PowerShell
Copyright (C) 2013 Microsoft Corporation. All rights reserved.

PS C:\Users\Administrator> Get-ADDomain | Select-Object InfrastructureMaster, RIDMaster, PDCEmulator

InfrastructureMaster                    RIDMaster                               PDCEmulator
——————–                    ———                               ———–
TestSvr.test.local                      TestSvr.test.local                      TestSvr.test.local

PS C:\Users\Administrator> Get-ADForest | Select-Object DomainNamingMaster, SchemaMaster

DomainNamingMaster                                          SchemaMaster
——————                                          ————
TestSvr.test.local                                          TestSvr.test.local

PS C:\Users\Administrator>

4. Add your Active Directory account to Enterprise Admins and Schema Admins groups. It is required by the adprep cmdlet. When the migration is finished, remove your account from these groups.

5. Currently there is a bug in the adprep command from Windows Server 2019 17338 build. A certificate must be installed on all servers in order that adprep is allowed to run. Mount the Windows Server 2019 ISO on a machine with a GUI. Navigate to <ISO Drive>:\Support\adprep. Right click on schupgrade.cat and select properties. Then open Digital Signatures tab and click on Details. Next click on view certificate. Click on Certification Path and select the Root CA certificate (the top one). Click on View Certificate. In the Details tab, click on Copy to file. Save the certificate in a location of your choice. Then add the certificate to trust root certification authorities store of each domain controller.

7. Once the schema is upgraded, run the following command (this command should be run on all domain controllers):

If you accidentally delete a file or folder in OneDrive, you may be able to recover it if it is long time ago.

There are many options to restore deleted files or folders.

1. The easy and faster way to restore deleted files or folders is using Previous Versions. To do it, right click on the folder hosts the deleted files, select Properties. Then Previous Version. Copy and past the deleted files in to a folder.

2. You can also use OneDrive recycle bin. 1) Login OneDrive online. 2) Click on Recycle bin on the left pane.

3) Right click on the deleted file, select Restore.

Situation: The client has enabled Azure MFA and would like to call office extension number. However, they can’t figure it out how to do it.

Procedure: You need to do that in Active Directory Users and Computers. This is the format: +1 8479450340×144. Note: 1. there is a space between +1 and area code 847. 2. add x between the office number and extension (no space).

Situation: The client find their WSUS server is out spaces.

Here are some suggestions to free spaces.

1. Make sure Update Files and Languages is configured to only download updates in languages which you support. To do that, open ASUS Console, go to Options>Update Files and Languages>Update Languages, make sure only check English in our case.

2. You may want to run ASUS Server Clearnup Wizard. To do that, go to ASUS Console>Options>ASUS Server Clearnup Wizard, follow the wizard to clean up.

3. Do not store update files locally

Go to Options>Update Files and Languages, check Do not store update files locally,.

4. Clean up WSUS by running the following commands:

net stop wsusservice

cd “C:\Program Files\Update Services\Tools”

wsusutil.exe reset

echo Delete WSUS Folder Content

pause

net start wsusservice

1. Access EDIMAX AP by opening a web browser and entering the access point’s default IP address “http://192.168.2.1” into the URL bar.
2. default username is admin and the default password is 1234.
3. Follow the wizard to setup AP.
4. Configure AP Mode: There are 6 AP mode. They are:

1) Select “Basic Settings” from the menu on the left side of the screen.

2) Open the drop down menu labeled “Mode” and select one Mode from the 6 available modes:

AP
Station-Infrastructure
AP Bridge-Point to Point
AP Bridge-Point to Multi-Point
AP Bridge-WDS
Universal Repeater

This is the screenshot of Station-Infrastructure.

Note: It is recommend to use “Select Site Survey”.

Press the WPS/Reset Button and hold for 20 seconds to reset the access point to factory default settings.

Note: Press this button for less than 5 seconds to start WPS functions.

1. Go to Active Directory Domains and trusts.
2. Right click on it and select Properties.
3. You should see Domain and Forest function level info.

You can explicitly test connectivity between Azure AD Connect Health agent with the Health service by using the following command:

Test-AzureADConnectHealthConnectivity -Role Sync

EDIWAX WiFi AP default username and password: admin/1234

default IP: 192.168.2.1.

1. Login domain admin account in one of Domain controllers.
2. Open Active Directory Users and Computers by clicking Start > All Programs > Administrative Tools, and then click Active Directory Users and Computers.
3. Right-click the domain node and then click Raise Domain Functional Level

4. Under Select an available domain functional level, select domain function level.

5. When popup warning message, click Ok.

6. Click OK when you will receive an acknowledgement message telling you that the operation was completed successfully.

7. Go to Active Directory domains and trusts and right click on it. Select Raise Forest Function Level.

To check the domain and forest function level, please refer to this page:

• How to check Domain and Forest function level status