can you give us a links, where are you checking? maybe one of this sites is using proxy server and this is one of the reason of different IP.
if you give us more detail it will be more clear and we will understand better
try this....
http://www.whatsmyip.org/https://www.whatismyip.com/it games me same ip? are you from smartphone with mobile data? or are you using public wifi? maybe your provider is using proxy server and it gaves you different ip, before connected to Wan
are you sure? your ip same from both that site?
no, im not using smartphone or public wifi.
can you give us a links, where are you checking? maybe one of this sites is using proxy server and this is one of the reason of different IP.
if you give us more detail it will be more clear and we will understand better
I think so because he said that he is checking his IP at the same time together so maybe he is using two different browser.
You could also try checking your IP at whoer.net and see if your IP is changing without using proxy server or VPN
and im not using different browser.