Hi,
a customer had the issue that an virtual machine gets down frequently. An ipconfig reports a IP Address of the “Automatic Private IP Addressing” range (169.254.x.x).
An Eventlog entry with ID is also written.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 | PS D:\> Get-EventLog -LogName System -EntryType Error | ?{ $_ .EventID -eq 4199 } | fl * EventID : 4199 MachineName : myServer.myDomain.org Data : {0, 0, 0, 0...} Index : 705401 Category : (0) CategoryNumber : 0 EntryType : Error Message : The system detected an address conflict for IP address 0.0.0.0 with the system having network hardware address 55-aa-ee-cc-11-00. Network operations on this system may be disrupted as a result. Source : Tcpip ReplacementStrings : {, 0.0.0.0, 55-aa-ee-cc-11-00} InstanceId : 3221229671 TimeGenerated : 07.08.2022 12:15:41 TimeWritten : 07.08.2022 12:15:41 UserName : Site : Container : |
This could happen when ArpProxy Service replies incorrectly to all ARP requests or the physical switch has gratuitous ARPs enabled.
The solution is to disable gratuitous ARP.
Start a cmd.exe shell with administrator permissions:
1 | D:\> reg add HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters /v ArpRetryCount /d 0 /t REG_DWORD /f |
Check and reboot the system
1 2 3 4 5 | D:\> reg query HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters /v ArpRetryCount HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters ArpRetryCount REG_DWORD 0x0 D:\> shutdown /t 0 /r |
Michael