If your TP Link Deco app not working, you are by no means alone. Among mesh Wi-Fi users, this is among the most often cited issues; the good news is that most of the time the remedy only takes a few minutes. Here is a quick overview of what to look for before contacting help should the app not load, keep crashing, or unable to locate your router. Common Reasons the Deco App Stops Working A few of the likely culprits behind this issue are as follows: Unstable or lost internet