169 IP address IPV4

Do you see a 169.254. x.x address, that means that the DHCP server is not reachable, you have set DHCP to Enable, see this Apple article: Recommended settings for Wi-Fi routers and access points

https://support.apple.com/en-us/HT202068

IP4 stands for Internet Protocol and is used to deliver datagrams between hosts in a network.

IP4 is different from an Automatic Private IP address. 

It would be better if you can please re-post with a screenshot, in order to understand the phenomenon better. Images/pictures speak louder than words. 

Please understand this is a public forum: While attaching a Screenshot, do not provide any personal credentials, such as Card detail, email id, apple id, IMEI number, Serial Number, Phone number, Order ID, if you are sharing a map ensure your location is not identifiable, etc.

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