Generally, a 169 IP address means that your computer wasn’t able to talk to a DHCP server. Usually that means that your router is wedged and needs to be rebooted, or that your Wi-Fi isn’t working at all. A good starting point is to reboot your router and your laptop.

How to Fix 169.254. X.X – “Invalid IP Config” Issue on Windows Method 1: Reboot the PC. Method 2: IP config renew fix. Method 3: Unchecking Fast Reboot option (Temporary) Method 4: Restart DNS client. 23 Mar 2018

169.254. x.x: This is what’s called an Automatic Private IP address. An IP in this range means that the computer cannot see the network. … It could be as simple as an unplugged network cable, or it could be as complex as the network being down.

The Internet Assigned Numbers Authority (IANA) has reserved 169.254. 0.0-169.254. 255.255 for Automatic Private IP Addressing. As a result, APIPA provides an address that is guaranteed not to conflict with routable addresses.

0.0 to 100.127. 255.255, netmask 255.192. 0.0) for use in carrier-grade NAT scenarios. This address block should not be used on private networks or on the public Internet.

169.254. x.x: This is what’s called an Automatic Private IP address. An IP in this range means that the computer cannot see the network. … It could be as simple as an unplugged network cable, or it could be as complex as the network being down.

A unicast address uniquely identifies a single interface by its address. An interface can have multiple unicast addresses and must have at least one link-local address. A link-local address is an address used on a link between two nodes.

A subnet mask is used to divide an IP address into two parts. One part identifies the host (computer), the other part identifies the network to which it belongs.

Special-use IP addresses are marked as registered to IANA so that they are reserved for the special use on behalf of the Internet community. This does not mean that the special-use addresses are "used" by us (see further explanation below). Only a very small block of IPv4 addresses (192.0. 32.0 . . . Read more

DORA is the Process that is used by DHCP (Dynamic Host Configuration Protocol). It is used for providing the IP Address to the clients/host machine. It has four main stages and it obtains the IP Address from the centralized server.