So I couldn't handle the slow speed so sadly put it back to ipv6, Dual Mode. Good news, the Motorola One Action works again.Bad news, the Samsung GS8 doesn't.
Same issue as all others. Android 9.0 on Samsung GS8 and Android 9.0 on Motorola One Action After clearing uninstalling WhatsApp on both phones, only the GS8 was able to download photos/media without issue. After switching the CODA4582 (white) modem...