Hi. Touching base to see if things have changed. I’m new to the Traeger world. I was looking at getting the Pro 22, and elected, when HD couldn’t find the one they had in stock, to get the 575. Two weeks in and zero problems. The probe, definitely needed calibrating. I have an instant I trust, calibrated the internal probe 9 degrees. So there is that, but afterwards, perfect. If your WiFi is weak As you indicate, I can see where problems would surface. I read you need a WiFi booster, not knowing your internet speeds, house size, and modem range, I’ll tell you that I purchased googles 3 pack of WiFi “pucks” as I call them. You can buy then individually or a three pack. They are phenomenal. They communicate wirelessly, the first is wired into your modem. They eliminate dead spots and I Greatly enhance signal strength outdoors. There are other options too, but this was great for me. I’ve read the issues with the 575, but haven’t experienced, (knock on wood). I hope the issues you are having are simply internet signal related. A booster will help. Good luck.