Network Diagnostics dialog¶

The Network Diagnostics dialog provides a comprehensive live view of the network link to the radio. It features a multi-tab layout with an Overview dashboard with health cards and time-series charts, a Connection Details pane with labeled metrics (including the Adaptive Frame-Rate Throttle section), searchable Latency & Jitter / Stream Rates / Packet Loss / Audio trend graphs, an Application Logs page for tailing the log file filtered by category, per-stream RX audio diagnostics, and a TCI Clients page (build-gated).

Opening the dialog¶

Click Settings > Network...

The dialog opens whether or not a radio is connected, but metrics are meaningful only when connected.

Tabs¶

Tab	Description
Overview	Four health cards (Status, Latency, Packet Loss, Audio Buffer) and four time-series graphs (Latency and Jitter, Recent Packet Loss, Total Stream Rates, Audio Buffer).
Connection Details	Scrollable grid with labeled values for Network Status, Incoming Stream Rates, Packet Loss, Audio Playback, and the Adaptive Frame-Rate Throttle subsection. Renamed from "Details" in the v26.8.4 tree-navigation rework.
Latency	Full-width time-series graph of RTT, arrival gap and jitter in ms.
Rates	Full-width log-scale time-series graph of per-stream incoming bitrates (RX total, Audio, FFT, Waterfall, Meters, DAX) in kbps.
Packet Loss	Full-width time-series graph of packet loss % per stream category.
Audio	Full-width time-series graph of playback buffer fill (ms) and underruns/s. Includes per-stream RX audio diagnostics showing feed rate, deficit, late packets, packet class code, and stream health for each active audio stream.
Logs	Live tail of the AetherSDR log file, filtered by category checkboxes. Syntax-highlighted by log level and category name.
TCI Clients	Lists connected TCI clients with a live traffic monitor (Pause/Save log/Clear), answer-command suppression controls, and per-client details. New in v26.8.4. Build-gated by HAVE_TCI / TCI support.

Adaptive Frame-Rate Throttle¶

The Adaptive Frame-Rate Throttle section under Connection Details shows the adaptive throttle's Current State, Pending Lift and Sessions This Run values. This feature reduces panadapter frame rates when latency or loss is detected. New in v26.8.4. Hidden until throttle data is available.

Controls¶

Control	Location	Description
Timeframe	Top-right corner of the tab bar	Selects how far back the time-series charts display history. Default is 5 minutes. Options: 1 minute, 5 minutes, 15 minutes, 1 hour, 1 day, 1 week. Hidden when the Logs tab is active or on the TCI Clients page.
Filter Categories (Logs)	Logs tab	Per-category checkboxes filter the log view. Includes a General (default) category plus all registered LogManager categories.
Select All (Logs)	Logs tab	Shows all log categories in the viewer.
Deselect All (Logs)	Logs tab	Hides all log categories from the viewer.
Live / Paused (Logs)	Logs tab	When set to Live, the viewer auto-scrolls to the newest output. Scrolling up auto-pauses; clicking Live resumes and jumps to the tail.
Search	Navigation tree header	Filters the navigation tree items to show only those matching the typed text.
Navigation tree	Left side of dialog	Tree widget listing all diagnostic pages. Click any item to switch the main view to that section.
Read-Only Clipboard Copy	Connection Details page	Copies the whole diagnostic summary.
Close	Bottom of dialog	Closes the dialog.

Indicators¶

Indicator	Meaning
Status	Overall link quality, color-coded green → red. States: Excellent, Very Good, Good, Fair, Poor.
Target Radio IP	IP of connected radio, or "Not connected".
Selected Source	Local NIC/bind path used for the connection.
Local TCP	Local TCP endpoint.
Local UDP	Local UDP endpoint.
First UDP Packet	Whether the first UDP packet has been received since connect.
Latency (RTT)	Current round-trip time. May show "not measured on this link" or "n/a" on transports that have no round trip to time.
Max Latency (RTT)	Highest RTT seen since connect. May show "not measured on this link" on transports that have no round trip to time.
Audio / FFT / Waterfall / Meters / DAX rates	Per-category ingress rate in kbps. May show "n/a" on transports that do not expose per-stream category stats.
Total RX / Total TX	Aggregate bytes per second in each direction.
Audio / FFT / Waterfall / Meters / DAX drops	Per-category dropped-packet counts and percentage. May show "n/a" on transports that do not expose per-stream category stats.
RX Buffer Now / Peak	Current and peak audio buffer fill in bytes and ms.
Underruns (total / last sec)	Audio underrun counters.
Audio Arrival Gap / Max Arrival Gap	Inter-packet arrival timing. May show "not measured on this link" before the first delivery-timing window closes.
Network Jitter	Smoothed jitter estimate of audio stream in ms. May show "not measured on this link" before the first delivery-timing window closes.
Adaptive Frame-Rate Throttle	Current State, Pending Lift and Sessions This Run values. New in v26.8.4. Hidden until throttle data is available.
Log path label	Shows the full path of the log file being tailed.

Logs tab¶

The Logs tab tails the AetherSDR log file in real time. The full path of the file being tailed is shown in the log path label at the top of the tab.

Log output is syntax-highlighted by log level and category name:

Timestamps are rendered in muted blue-grey.
DBG entries are rendered in muted blue-grey.
INF entries are rendered in light blue.
WRN entries are rendered in amber.
CRT and FTL entries are rendered in red.
Category names are rendered in bold light grey.
Numeric values and protocol tokens (for example, UDP, TCP, VITA-49, RX, TX) are rendered in distinct accent colors.

Use the Filter Categories checkboxes to show only the categories relevant to the problem you are diagnosing. Click Select All to restore all categories, or Deselect All to clear the view before selecting specific categories. Scroll up to pause auto-scrolling; click Live to resume and jump back to the tail.

Tips¶

A rate of 0 kbps for a category that should be active (for example, Audio while a slice is open) indicates the stream has stopped arriving. Check the Status indicator in the Network Status group on the Connection Details tab first.
If a rate or latency indicator shows "n/a" or "not measured on this link", that diagnostic does not apply to the currently connected transport. This is distinct from a zero measurement, which would indicate an actual reading of zero.
Large swings in a category rate from second to second can indicate bursty delivery even when the drop count remains at zero.
Zero drops in the Packet Loss group does not rule out jitter or late-arriving bursts. If audio is choppy but drops show zero, check the Audio Playback group on the Connection Details tab for underruns and jitter, or review the Audio tab for a time-series view of buffer fill and underruns/s.
The Rates tab uses a logarithmic y-axis, which makes it easier to see low-rate streams (for example, Meters) alongside high-rate streams (for example, RX total) on the same chart.
Extend the Timeframe selector to 1 hour or longer when investigating intermittent issues that occur infrequently.

Troubleshooting¶

All category rates show 0 kbps — The radio is not streaming. Confirm the connection is active by checking Status and Target Radio IP in the Network Status group on the Connection Details tab. Reconnect via Settings > Connect to Radio... if needed.
DAX rate shows 0 kbps while DAX is expected — DAX streaming may not be enabled. Verify DAX is started; on supported platforms, check Settings > Autostart DAX with AetherSDR.
Drop percentage is non-zero on one category only — Loss is isolated to that stream. This can indicate the radio is overloaded for that specific data type or that a network queue is preferentially dropping UDP packets of that size.
Logs tab shows no output — Confirm the log path label displays a valid file path. If the path is missing or the file does not exist, restart AetherSDR and re-open the dialog.