I've had an iPhone 7 since launch, and up until recently hadnt had any issues. But, I have a few group texts that have some iMessage and some regular text messagers in it. For some reason these incoming texts are getting caught up when I am connected to wifi and will all be sent in one giant blast at some point, often meaning that I am missing important information. I've tried resetting the network settings, turned off wifi calling and even VoLTE. Still having the issue. I also tried deleting wifi networks are readding them. Still having the issue. Is there anything I am missing? I cant seem to figure this out and its quite frustrating.
Best answer by tmo_mike_c
It's possible the SIM could be the issue. It might be worth getting a new one if you test it in another phone and the exact same thing happens under the same conditions. As for the phone, if you're not running the latest software, you'll want to update it. If the phone is up to date, you could reset the phone, test it out again, then restore your info back once you know it's working. I'd say if you do have a phone to test your SIM in now, and you're not able to recreate the same issue, we'd definitely want to reset this phone.