"RPC server is unavailable" Error encountered when upgrading App Portal

Title

Summary

When upgrading App Portal, an ?RPC Server is unavailable? Error may be encountered when running the upgrader.

When upgrading App Portal, an ?RPC Server is unavailable? Error may be encountered when running the upgrader executable.

Upgrading Database
Connection opened for upgrade
Error Encountered: The RPC server is unavailable. (Exception from HRESULT: 0x800706BA)

App Portal makes a WMI call to the SCCM server and if a firewall blocks the WMI call, the error ?RPC Server is unavailable? will be encountered.

To resolve the issue enable WMI/RPC ports on the network Firewall.

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Product

App Broker/App Portal

Deployment type

On-premises

Visibility

Guest

URL Name

rpc-server-is-unavailable-error-encountered-when-upgrading-app-portal

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