I already use Asahi Net WiMAX 2+ together with the Fixed IP Address option. Can I cancel just the Fixed IP address option?（Asahi Net WiMAX 2+）｜FAQs｜Member Support

FAQs

I already use Asahi Net WiMAX 2+ together with the Fixed IP Address option. Can I cancel just the Fixed IP address option?

Yes, it is possible to cancel only the additional Fixed IP Address option.
After completing the cancel process, you will need to change the APN and User Name setting in the Wi-Fi router.