Hi,
Hope everything is going well.
1,Kindly help check the ccmsetup.log and ccm.log to see if there is any further information.
2,Kindly make sure the site server is able to resolve the VPN client's IP address.
3,Which boundary type you are using for VPN clients? It's recommended to use IP address range boundary for VPN clients and set up a boundary group for it.
4,Please check your boundaries and boundary groups configurations, and associate your MPs and DPs to the boundary groups. Make sure the client can communicate with the MPs and DPs. Please also make sure your Firewall doesn't block the communication between the client and site system servers.
For more troubleshooting steps, please refer to:
SCCM Client install fails over vpn
Troubleshooting SCCM ..Part I (Client Push Installation )
Hope it helps. Have a nice day!
Best regards,
Simon
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