What should I do if live prices stop updating?

You first check whether this is isolated to one screen (like the chart specifically) or affecting the whole app, including the order book and LTP display, since a chart-only freeze is often just a rendering issue, while a full-app freeze points more toward a connectivity or data feed problem. You check your internet connection next, since a weak or dropped connection is the most common cause of stale prices across an entire app. If prices are stuck across the board and your connection seems fine, you check the broker’s status page or official social media for a known outage, since a data feed issue on the broker’s end affects everyone simultaneously, not just you. If you have an open position and prices genuinely aren’t updating, you don’t assume the market itself has paused (unless there’s an actual circuit or trading halt), and you switch to the web terminal or call the dealing desk if you need to act on that position while the app-side issue persists.