Can't text from iPhone 7 to Android/Samsung/etc
I can text other iPhones via iMessage, but non-iPhones it won't work. I have to toggle between 4G/LTE, and the resend, for a text to go through. I have to "reset" like this every time I want to send a text. Apple support couldn't fix it and said it's a carrier issues. (I've tried all their fixes [factory reset, network settings reset, MMS/SMS are on, logged out of and back in to iMessage, etc, etc], and still the only thing that works is toggling between 4G/LTE. I shouldn't have to do that every time I want to text a noniPhone though, right?)
Anyone know what's going on? At this point, I'm not sure what else to try. I'm running Catalina on my Mac, my iPhone is up to date. Seriously, what's going on??