Remote users machine not registering to AD DNS

[suresh (Suresh Sadanandam)]

Having an issue where end-user laptops are dropping off from AD DNS… Unable to register them back to our corporate AD DNS…

[Niokolay_Dimitrov]

There are articles for AD DNS:

Zscaler Private Access - Active Directory Enumeration

When using Zscaler Private Access to access Active Directory, it’s important to consider that the Connector IP address is seen as the source IP for user requests. It’s therefore imperative that the Connector IP ranges are configured in Active Directory Sites and Services. This is used for the decision on which Active Directory Domain Controller is going to process the Netlogon request and how GPO is delivered. The AD Site also controls which SCCM server is used (when configured in AD Site mod…

Also maybe a machine tunnel is good to be tested so that there is access to the AD even before logon to the ZPA service:

About Machine Groups | Zscaler