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Case Study - Event ID 4199 - The system detected an address conflict for IP

Situation: the client turns on the computer this morning and receives Event ID 4119 with this message: The system detected an address conflict for IP address


  1. Check the DHCP client table in the Linksys router they use it as the DHCP server, but cant find another networking device using the same IP.
  2. Ping a, it replies without host name.
  3. Use ARP a, find the Mac address is From the Mac address, we find it is a D-Link wireless router added last week.

Related Topics

Calculate Hosts
Crossover Cable
IPv4 Subnet Chart
Mac Address
Patch Cable

netstat command
network troubleshooting
other DOS commands

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