Why does my internal computer ip address keep changing?

Why does the intenal ip address of my computer keep changing? It changes from 192.168.2 to 192.168.3 to 192.168.4, etc...
This is causing me to have to login into my router and change the IP in my port forwarding settings constantly.
In ipconfig it is listed as the IPv4 address. This is the one that keeps changing.
Any ideas what I can do?
Thanks,
Newbie
This is causing me to have to login into my router and change the IP in my port forwarding settings constantly.
In ipconfig it is listed as the IPv4 address. This is the one that keeps changing.
Any ideas what I can do?
Thanks,
Newbie