Originally Posted by
tide
Thanks. I’m having issues with AT&T roaming on docomo. Multiple times during the day, I lose connection for sometimes hours. My iPad (T-Mo) is auto connecting to SoftBank LTE and refuses to roam. I don’t recall having such issues before but my last trip was Jan 2020.
I have T-Mobile and was roaming with Internation Pass on my iPhone 12 Pro (US model) toward end of November for a week and everything was fine and without any issue so that's curious. I don't know if T-Mobile tablet / smart device data plan supports roaming though, you might have to check with T-Mobile.