What does this network error message mean?

silkyuk9

after rebooting my talktalk BB router I keep getting this message

click to enlarge image

frugal_mike

It means what it says, two machines on your local network have the same IP address. Someone has likely configured a static IP address for something on your network rather than letting the router assign them using DHCP, and it's been given the same address as something the router has assigned.

If two machines on the network have the same IP address it could cause things to stop working. It would be like two houses on the same street having the same number and postcode. The postman would send things to the wrong place.

GunJack

reset the network adapter on the machine in question, should allow the allocation of a new IP address for it

Ximian

You could also try the following in a command prompt (aka DOS):

ipconfig /release

then:

ipconfig /renew

to see if a new IP Address is obtained which doesn't conflict with the other one.

Sinhanada

What devices do you have on your network? I'm assuming a PC\Laptop (or multiple) and a wireless printer?

Assuming all devices are configured by DHCP (standard setup) then a simple reboot of all devices should clear this, otherwise on all PC's where you can get a command prompt (Go to start, Run and then type in cmd and enter) as Ximian said and run the upconfig commands should resolve this