Hello
Thank you for your question and reaching out. I can understand you are having query\issues related to Network drive disappears after reboot.
It happens frequently that the network is already set up for the system but is not yet ready to connect and effectively map the drive. Consequently, it displays when you attempt again, indicating that it is already mapped.
- Enable the policy: "Always wait for the network at computer startup and logon" located under Computer Configuration -- Policies -- Administrative Templates -- System -- Logon. This might resolve your drive mapping issue.
- Try to Map drive with different Drive letter.
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