What phone do you have?
What plan are you on?
Does your plan include data, or just talk & text?
About 3-weeks ago my wife’s phone stopped getting text’s when on our home wifi. As soon as she would pull out of the driveway her phone goes crazy receiving texts. There are the occasional texts that get through, but she misses most of them. I have checked her settings against mine and I don’t see anything that would cause this problem.