There are 2 versions of this router. One is 100M as the screenshot you posted shows. However you mentioned that this is the 100M INT. Can you verify which version is this router and which firmware version you flashed?
xiaomi_mi-router-4a-100m-squashfs-sysupgrade.bin
or
xiaomi_mi-router-4a-100m-intl-squashfs-sysupgrade.bin