Samsung Multifunction Printer Error Code S6-3123

S6-3123 means the printer has detected an IP address conflict on the network. Another device on the same local area network is using the same IP address as the printer. This prevents the printer from maintaining a stable network connection. The conflict must be resolved by changing the printer's IP or obtaining a fresh one from the DHCP server.

The printer's network functions will not work reliably while the IP conflict is active, so network printing, scanning to computer, and other network-dependent features will likely fail or behave unpredictably. There is no hardware safety risk, but the error should be resolved before relying on the printer for network tasks. Local functions such as direct USB printing or copying may still work depending on your setup.

This error is a network configuration issue and does not require any replacement parts, so the cost is typically zero if you resolve it yourself through the printer's settings or your router. If you hire a network technician or IT professional to identify the conflicting device and reconfigure the network, expect to pay a service fee in the range of $50 to $150 depending on your location and the complexity of your network setup.

If your printer uses a static IP address, go to Network, then TCP/IP (IPv4), then STATIC in the printer's settings menu and assign an IP address that is not in use by any other device on your network. If your printer is set to use DHCP or Bootp for automatic addressing, a simple reboot of the printer will force it to request a new, non-conflicting IP address from your router or DHCP server. If the error returns after rebooting, check your DHCP server settings and any devices on the network that may have manually assigned addresses within the DHCP pool.

A simple reboot can clear the error if the printer is set to DHCP or Bootp, since it will request a new IP address upon restart. However, if the printer is configured with a static IP, rebooting alone will not fix the issue because the conflicting address will be reassigned on startup. In that case, you need to manually change the static IP setting through the printer's network menu.