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Clients Not downloaing updates from WSUS Server

Windows 2012R2 WSUS Server
Windows 2012R2
Windows 2016 Data Center
Windows 2019
Windows 10
Windows 8.1
Windows 7
VMware ESXI 6.5

My Windows Update Server has updates ready for all the computers listed above.
All computers are checking in every 6 hours and that is working I see all them checked in with current time stamp.
I use Windows Update Notifier version 1.5.0

None of my machines show any pending updates to apply.

The GPO has not changed in a long time all WSUS settings are the same Download updates and manually install.

All updates are approved ready to install.

Any thoughts on why the updates are not downloading?
Watch Question

Distinguished Expert 2019

Can you check rsop.msc op on few clients if gpo is still applied and when did last update was installed?
Also check client application log
What wsus console showing
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Agree, please look up some of the updates in WSUS - are there counts under "required"?
Systems Administrator
After a few days and running this

$AU = New-Object -ComObject "Microsoft.Update.AutoUpdate"

The updates downloaded to the computers all good now