Issue/Introduction
This article describes how to troubleshoot a Windows VM instance that cannot obtain an IP address. It applies to the initial diagnosis and resolution of similar issues in ZStack Cloud.
Environment
- Product: ZCF
- Component: Cloud
- Version: 3.x-5.5.30
Symptoms
Run the following commands in a Windows command-line window to request an address again:
C:\Users\1> ipconfig /release
C:\Users\1> ipconfig /renewThe VM instance displays The DHCP server cannot be contacted. The connection timed out. The dnsmasq.log file reports an error that starts with not using configured address xxxx because it was previously.
Possible causes
An IP address conflict exists.
Resolution
- After you change the IP address of the Windows VM instance, DHCP can obtain an IP address normally.