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On a PC, you can use the command "gpupdate /force" to force GPO update
If you have multiple domain controllers. make sure the newly created GPO is replicated across to all domain controllers.
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- Edit the GPO using Group Policy Management Editor.
- Expand Computer Settings Configuration > Policies > Administrative Templates > System > Logon.
- Set “Always wait for the network at computer startup and logon” to Enabled.
Enable “Startup policy processing wait time” and set it to 90 seconds.
- Edit the GPO that applied to the computer using Group Policy Management Editor.
- Expand Computer Settings Configuration > Administrative Templates > System > Group Policy.
- Enable “Startup “Specify startup policy processing wait time” and set it to 90 120 seconds.