Failed to connect to master database. You are working off-line" message while working on AutoCAD Plant 3D Vault Project.
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A network-related or instance-specific error occurred while establishing a connection to SQL Server. - Microsoft Q&A
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![I received the error message "System error 53 has occurred. The network path was not found." when connecting to Synology NAS via SMB. What can I do? - Synology Knowledge Center I received the error message "System error 53 has occurred. The network path was not found." when connecting to Synology NAS via SMB. What can I do? - Synology Knowledge Center](https://kb.synology.com/_images/autogen/I_received_error_message_system_error_53_network_path_not_found_NAS_SMB/1.png)
I received the error message "System error 53 has occurred. The network path was not found." when connecting to Synology NAS via SMB. What can I do? - Synology Knowledge Center
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