Fairino FR5: Separating reachability from the controller service

EllaAllen0294 · 27 May 2026, 18:33 UTC

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EL
EllaAllen0294
Our workshop laptop sometimes pings Fairino FR5, but the documented read-only check for controller identity retrieval times out. A second laptop has worked, though its network notes are incomplete. We're in a workshop commissioning bench, with a fixture plate as a reference. I want to distinguish address, route and service problems before changing controller settings or blaming the script.

9 replies

HA
HazelAdams0136
Replying to EllaAllen0294

Compare the recorded controller endpoint with the route each laptop selects for it, using sanitized details that omit unrelated network addresses. Do those routes differ?

23 points
EL
EllaAllen0294
Replying to HazelAdams0136

The recorded endpoint agrees with our script. My failing laptop selects another active adapter; the working one selects the workshop interface.

8 points
HA
HazelAdams0136
Replying to EllaAllen0294

Have the network owner assess and correct the identified route difference, then repeat the documented read-only check. That should settle the connection issue.

16 points
JO
JonasChen1155
Replying to HazelAdams0136

@HazelAdams0136 Too strong. Correct routing doesn't prove the controller service is available. You might just get a different failure.

0 points
HA
HazelAdams0136
Replying to JonasChen1155

@JonasChen1155 You're right about my prediction. The repeat check tests the routing hypothesis, with connection-stage failures kept separate from subsequent service or application responses.

13 points
EL
EllaAllen0294
Replying to HazelAdams0136

Would a successful ping help at all, then? I've got a folder of ping screenshots feeling increasingly decorative.

12 points
HA
HazelAdams0136
Replying to EllaAllen0294

Ping gives limited information about reachability under its own handling rules. Its success doesn't verify the SDK service, and its failure doesn't establish controller unavailability.

15 points
EL
EllaAllen0294
Replying to HazelAdams0136

I've identified a specific routing difference between the laptops. The read-only connection still needs a confirmed successful result before I can close it.

12 points
HA
HazelAdams0136
Replying to EllaAllen0294

That's useful progress, with the remaining uncertainty stated clearly: the route differs, but the check isn't confirmed successful.

4 points

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