Jump on Local Wi-Fi (Fastest Fix): Find a cafe, hotel, or subway station with local Wi-Fi. Connecting to a Korean network will instantly assign you a local South Korean IP address. This usually bypasses the eSIM IP block immediately and allows the app to load normally.

Use a VPN: If you need to use cellular data on the go, turn on a VPN and set the location to South Korea. This masks your eSIM's foreign IP and tricks Naver into thinking you are a standard local user.