Well it looks like
@PitbossGrillsDev has abandoned ship. Like most everybody else, I too am frustrated with the whole app/wifi thing. Just look at Google Play Store reviews for the Pit Boss app. 1.3 stars with no replies or acknowledgement from Pit Boss. Would have been nice if the app worked and worked consistently.
When the grills controller screen shows connected to wifi and my router shows my grill connected to my wifi, my phone is connected to my wifi, but the app shows the grill is NOT connected to wifi, the problem is NOT with my network. The problem is the breakdown of communication over the internet between the Pit Boss servers, the Pit Boss app and the Pit Boss grills controller and Pit Boss's refusal to make it right. Beings that it works sometimes, it would lead one to believe it's a Pit Boss server issue. It really is a shame they can't hire a top notch team of developers, even if it is a 3rd party, to straighten this out. It can be done. Just got to be willing to spend the money. They ought to hire my son. He's an exceptional program developer.