Graphs & reports

Visualise trends over time and pinpoint exactly when and where issues occur.

Overview

The Graphs page shows every metric as a time-series chart — signal strength, latency, speed and more, plotted over time so you can see exactly when things change. This is where you go to answer questions like:

Available graphs

Gateway ping
Latency to your router over time. Spikes here indicate a local WiFi issue rather than an internet problem.
External ping
Latency to an external IP (default: 8.8.8.8). Spikes here that don't appear in gateway ping indicate an internet or ISP issue.
Download speed
Speedtest download results over time. Look for consistent drops at particular times of day.
Upload speed
Speedtest upload results over time. Upload often drops before download on congested connections.
DNS resolve time
Time to resolve a domain name. Sudden increases can indicate DNS server issues or ISP routing problems.
Webpage fetch time
End-to-end time to download a webpage. The most complete picture of what users actually experience.
Gateway packet loss
Percentage of ping packets that didn't return. Even 1–2% loss causes noticeable issues with video calls and gaming.
Speedtest ping
Latency measured during the speedtest — reflects real-world gaming and video call performance.
Gateway ping (ms) — last 24h
2.4 GHz
5 GHz
Download speed (Mbps) — last 24h
2.4 GHz
5 GHz

Filters and controls

Time window

The Window dropdown controls how far back the graphs show data. Options are 1h, 6h, 12h, 24h, 48h, and 7 days. Zoom into a specific incident with 1h or 6h; zoom out to see weekly patterns with 7 days.

Band filter

The Band dropdown lets you show both bands together, or isolate a single band. Showing both is useful for comparison — if 5 GHz degrades while 2.4 GHz stays stable, the issue is band-specific rather than a general internet problem.

Refresh

Click the Refresh button to reload data without reloading the whole page. Graphs don't auto-update — use this after a manual test run or to check for new data.

Reading the graphs

Each graph plots time on the X axis and the metric value on the Y axis. Both bands are overlaid on the same chart — blue for 2.4 GHz and green for 5 GHz.

💡
Hover over any point on a graph to see the exact value and timestamp in a tooltip. This is useful for pinpointing the exact time of a spike or dropout.

Gaps in a line indicate that the test returned no result for that cycle — either the connection was down, the Pi couldn't associate to that band, or the test timed out. A gap is more informative than a zero value, as it tells you something actually failed rather than measured at zero.

Common patterns to look for

🌅

Evening slowdowns

Download speed drops consistently between 6–10 pm. Classic network congestion — your ISP's infrastructure is overloaded during peak hours.

⚡

Latency spikes

Gateway ping spikes to hundreds of ms but external ping is fine. Usually indicates WiFi interference or a device causing local network congestion.

📉

Gradual degradation

Speeds slowly decline over days or weeks. Could indicate a failing router, interference from new neighbouring networks, or ISP issues.

🔄

Band discrepancy

5 GHz ping is consistently much lower than 2.4 GHz. Normal — 5 GHz has lower latency when close to the router. Large differences when far away suggest range issues.

💧

Packet loss bursts

Packet loss graph shows periodic bursts rather than continuous loss. Common with microwave ovens, baby monitors, and other 2.4 GHz interference sources.

🌙

Overnight issues

Problems only appear between midnight and 6 am. Could be scheduled router maintenance, ISP network work, or automatic firmware updates on your devices.


Next steps