Why does my IP address Change so frequently?

Question

I have connected my network connection through the wireless device with DHCP. Recently I have changed my connection from wireless to wired cable connection. At that time My IP address got changed automatically,

I tried these steps Changing Your Private IP to have my past IP address but also it changes automatically.

Now, when I check my IP address it shows a different IP from before. That makes 3 changes, my confusion is around whether it changes itself once per day or not. If anyone has an answer for this, please let me know.

Answer 1

Are you sure you talk about private IP and not Public one ? Did you try going back to wireless for few days and watch if your private IP don't change ?

Answer 2

Some details are missing so I can't probably make a good diagnosis of what you have here. But for now I'll try to help out.

If you are talking about your public IP address it's normal that it'll get changed quite often, unless you have signed up on your ISP for a static public IP address (ex. you told you're ISP that you'll be running a web server). It's normal for the IP to change in intervals, days, hours or even minutes if your ISP has lots of users.

If you're talking about your local IP address, you should check your router out (assuming you use one), check if how many people are using/connected to it.

OK, so we're dealing with Private IP. Your problem is it changing whenever you Disconnect/Connect right? Are you the only user? Or are you suspecting the router might be spewing out random IPs from the IP pool even if the previous ones aren't already allocated?

Ex.

a) You connect, router gives you 192.168.0.2
b) You disconnect
c) Some other PC connects and gives 192.168.0.2
d) You connect again and router gives you 192.168.0.3

Are you talking something like the above situation?

EDIT: Silly me, found out that I can comment on my own answer.