Wi-Fi·26 questions

How to diagnose and resolve IP address conflicts in a wireless network?

Answer

An IP address conflict in a Wi-Fi network occurs when two or more devices try to use the same address to communicate with the router. This leads to constant connection drops, the inability to access the internet, and the appearance of system errors on the screens of client gadgets. Most often, the problem lies in the incorrect operation of the DHCP service on the router or in the manual assignment of old IP addresses by users.

To diagnose the problem, you should first log into the web interface of your router and open the active clients table. This section displays all connected gadgets and their issued network credentials. If you notice identical addresses on different devices, it means the DHCP server has failed. You can also use special network scanners on a smartphone or computer, which will quickly identify duplicate nodes on the air.

To resolve the conflict, follow these steps:

Restart the router to clear the IP address lease cache and force the DHCP server to redistribute them again.
Reconnect the problematic wireless devices to the Wi-Fi network so they request new network settings.
Check the network adapter settings on computers and disable the use of static IP addresses unless absolutely necessary.
Narrow the DHCP pool range on the router or set IP address binding by MAC addresses for stationary equipment to prevent repeated intersections.

After performing these procedures, the stability of the wireless network will be restored, and devices will stop losing data packets due to routing collisions.

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