C-3781

Cisco C-3781 IP Configuration Error

Cisco IP Configuration Error Catalyst
89% fix rate

Cause

Static IP conflicts with DHCP pool range

Fix Steps

  1. Access router admin panel and navigate to LAN/DHCP settings
  2. Verify DHCP pool range does not conflict with static IPs
  3. Release and renew IP address on affected device
  4. Windows: ipconfig /release then ipconfig /renew
  5. Mac/Linux: sudo dhclient -r then sudo dhclient
  6. Set reserved IP address in DHCP server for critical devices
  7. Verify subnet mask is 255.255.255.0 for home networks

Related Errors

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