Stuck with the router not picking the correct IP of your modem?

Try logging into the router's homepage (normally 192.168.0.1 depending the brand of it), log with administrative accounts and go to WAN connections, release it and renew it..!

If this does not work and the router keeps the same IP even after attempting to renew it, probably the ISP might need to change and release it from the modem or.. you could connect directly to the modem, do an IPCONFIG /RELEASE  ,  IPCONFIG/RENEW, then plug everything back to the router and re-do the first steps again, and maybe just maybe it will change this time.

Good night everyone.