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Microsoft Configuration Manager
An integrated solution for for managing large groups of personal computers and servers.
4,411 questions
Hi, @Richard Sindler
Thank you for posting in Microsoft Q&A forum.
The error 0x800706ba indicates that SCCM site server was unable to establish a connection with client over RPC ports. This may happen due to below reasons:
The RPC port 135 / Dynamic Ports are not opened between SCCM site server and client.
The firewall application installed on client machine is blocking inbound traffic over RPC ports.
We have to ensure that all the ports required for ConfigMgr Client Push deployment method are opened in network firewalls.
Server Message Block (SMB) TCP Port 445.
Remote Procedure Call (RPC) – TCP & UDP Port 135.
Remote Procedure Call (RPC) Dynamic ports ( TCP 1024-5000, TCP 49152-65535)
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