If you want to change Spectrum Router settings, you are supposed to follow a few important instructions. First of all, you should log in to your Spectrum Router in order to access its web admin interface. Now, you are supposed to look for network settings and then select Router settings. Now, just under router settings, you must type in the new IP address, and then you must click on save to save the changes. By doing so, you can find out the ways to fix it.