Ever since the Android Pie update my phone is having trouble sending and receiving texts at my workplace. I am using the Pulse SMS app but this has happened on the default messaging app also. It only happens at work so I think it might be related to the tower I am on. It is also intermittent some days I have no issues some days I do. My two coworkers are having the same issue. Once their phone updated to Android 9 Pie they started having issues with texts. Even trying messaging plus through wifi it took some time for a text to go out.