# Troubleshooting

## Where's the log file?

OpsLog writes a diagnostic log. The path is shown in Settings (and can be opened
from there). When reporting a problem, include the relevant lines — they're
prefixed by subsystem (`Flex:`, `icom net:`, `icom scope`, `antgenius:`,
`cluster:`, `qslmgr:log`, `audio:`…).

## CAT

- **Radio not connecting** — check the backend fields (COM port + baud for USB;
  IP/credentials for network). OpsLog connects non-blocking, so it won't freeze —
  watch the CAT status.
- **Icom: no CAT at all over USB** — the CI-V address must match the radio; pick
  your **model** from the dropdown (it sets the address) and set *CI-V USB Echo
  Back* **OFF** on the rig.
- **Icom scope blank on an IC-7300** — this was a bug where the scope decoder was
  chosen from the configured CI-V address; it now uses the model detected from the
  CI-V ID, so a single-scope rig run at address `0x98` decodes correctly. Update
  to the latest build.
- **Icom attenuator button does nothing** — the dB steps are model-specific; make
  sure the right model is selected (IC-7300 = 20 dB, IC-7610 = 6/12/18 dB).

## Remote Icom

- **Login rejected** → wrong Network User1 name/password.
- **Can't bind local port** → the Icom **Remote Utility is still running** —
  close it.
- **Link drops with the scope on** → receive-side retransmit should hold it; if
  not, check network quality and the `icom net:` log lines. See
  [[Remote Icom over the Internet]].

## FlexRadio

- **A control reads 0 / stale at startup** — some SmartSDR status fields use short
  names (e.g. the TX filter is reported as `lo`/`hi`, not `filter_low/high`). If a
  value never populates, capture the `Flex: … status` log line and report it.
- **Antenna wrong band on a spot click** — fixed: `SetFrequency`/`SetMode` update
  the slice cache immediately so the panel and the Ultrabeam follow don't chase a
  stale frequency.

## Multi-op live status PHP

`Connection refused` from the PHP page is almost always MySQL `bind-address =
127.0.0.1` or a firewall/grant issue — see
[[Multi-Operator Live Status]].

## DVK / PTT

- **Test PTT does nothing on CAT/OmniRig** — the key is held ~1.5 s so the async
  OmniRig write is actually sent; if it still doesn't key, the rig's OmniRig
  profile may not expose CAT TX keying — use RTS/DTR or VOX.

## Still stuck?

Open an issue with: what you did, what happened, your radio/model, and the
relevant log lines.