Quick answer: Measure round-trip time continuously with periodic timestamped pings, smooth the value with a moving average, and update the HUD readout from that live measurement.
A ping meter stuck at 0 or frozen at one number tells players nothing about their connection. It means RTT is never being measured live. Sending periodic timestamped pings and averaging the replies gives an accurate, updating readout.
How to fix it
1. Measure RTT continuously
Send a timestamped ping on an interval and compute round-trip time when the matching reply returns, rather than reading a static field or sampling once at connect.
2. Smooth with a moving average
Apply an exponential moving average to the raw RTT samples so the displayed ping is stable and readable instead of jittering wildly each packet.
3. Update the HUD from the live value
Bind the ping readout to the smoothed measurement and refresh it a few times a second so it visibly tracks connection changes.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every HTML5 error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
Ship the fix, watch the signature disappear from the next build. That's how you know it's really gone.