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Unread 24-05-2016, 15:42
DevinTJRobotics DevinTJRobotics is offline
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roboRIO Connection Target issues (Failed to Ping)

Hello,
I am having a problem where I am unable to deploy code to the robot given LabView is unable to connect to the roboRIO Target. I am able to connect to the radio from my laptop (wirelessly), I am able to access the roboRIO settings through Internet Explorer using roborio-3648-frc.local (but I can't modify anything), I can't deploy code, and I can't ping the robot as it returns that the Destination Host is Unreachable. Continually I have checked all the network connection boxes so that the computer automatically obtains the IP and DNS Server addresses. Any help you can provide is appreciated.
Thanks
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Unread 25-05-2016, 11:31
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Alan Anderson Alan Anderson is offline
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Re: roboRIO Connection Target issues (Failed to Ping)

It looks like you can connect to the roboRIO's web dashboard by using its mDNS name, http://roborio-3648-frc.local . Is that right?

What do you mean by "but I can't modify anything"?

How are you trying to ping the robot? What are you clicking/typing, what do you expect to happen, and what happens instead?
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Unread 25-05-2016, 20:29
Greg McKaskle Greg McKaskle is offline
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Re: roboRIO Connection Target issues (Failed to Ping)

Please run the driver station and report whether it shows communications. If it doesn't, what does the diagnostic tab report.

Also, what is the target name in the project? You can set it via the Properties dialog for the target.

Greg McKaskle
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Unread 25-05-2016, 21:08
ATannahill ATannahill is offline
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Re: roboRIO Connection Target issues (Failed to Ping)

Quote:
Originally Posted by Greg McKaskle View Post
Please run the driver station and report whether it shows communications. If it doesn't, what does the diagnostic tab report.

Also, what is the target name in the project? You can set it via the Properties dialog for the target.

Greg McKaskle
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Unread 29-01-2017, 20:36
DrewRoboroos DrewRoboroos is offline
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Re: roboRIO Connection Target issues (Failed to Ping)

I experienced the same symptom and it is unresolved. We have a workstation which works but the student insists that disabling all other adapters and rebooting the workstation after the roborio is disconnected from the router in any way is the fix.

Knowing that is not how IP networking works, I'm sure there is another answer.

The failing workstation is allocated the IP 10.45.37.67 (we are team 4537).
The router is set to 10.45.37.1 and I can ping that once connected to the wifi from the router.
I receive Unreachable icmp responses when trying to ping 10.45.37.2

The target in the project is default with a comment in the source indicating IP 10.TE.AM.2. The other workstation is using the exact same eclipse project with the same target specification (default).

These are the errors:
[echo] Finding roboRIO, please ignore any [hostinfo] error messages
[echo] Trying mDNS: roboRIO-4537-FRC.local
[echo] Trying DNS: roboRIO-4537-FRC.lan
[echo] Trying USB: 172.22.11.2
[echo] Trying Static Ethernet: 10.45.37.2
[hostinfo] Error retrieving remote host information for host:roboRIO-4537-FRC.lan.
[hostinfo] Error retrieving remote host information for host:roboRIO-4537-FRC.local.

I get the same result when plugging in to the router directly.
When plugging directly into the roborio, I do not get a DHCP address assigned.
I tried manually adding 10.45.37.2 to the hosts file but that didn't help (as the Unreachable problem appears to be the issue, not name resolution).


Rebooting the roborio did not change the behaviour. I have not tried rebooting the router. That will be an experiment for next weekend.


My first question is: For a working system, does the Roborio reply to ICMP Echo-request packets with a normal ping response?

My second: What protocols are used to deploy to the roborio?

My third: Has anyone "fixed" this in their experience?

Drew.
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Unread 29-01-2017, 20:39
DrewRoboroos DrewRoboroos is offline
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Re: roboRIO Connection Target issues (Failed to Ping)

Oops, I left off the key message:


BUILD FAILED
/home/developer/wpilib/java/current/ant/build.xml:108: Assertion failed: Property 'roboRIOFound' doesn't exist in this project.
roboRIO not found, please check that the roboRIO is connected, imaged and that the team number is set properly in Eclipse

The team number is set and code has been previously and subsequently deployed to it from a different workstation.

Drew.
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