Hi

We've made a script to transform the snmp response OCTETSTRING to an interger so PRTG.

It used to work when we had PRTG V8 , now we've upgraded to PRTG V9 and this script doesn't work anymore.

So I tried to put one of the demo scripts and even than aren't working.

We're seeing the following error in the sensor

External EXE/Script did not return a response (code: PE087)

When I run my script (and the demo ones) in the prompt i get a positive answer:

312321:ok

Is there a way to convert OCTET-STRING directly in PRTG 9?

How can we fix this script problem?

Article Comments

Hello,

thank you very much for your KB-Post. In current versions of PRTG you can set the SNMP Custom String to use regular expressions to "extract" a number from a string. You could try that.
Otherwise, the PRTG Services changed from PRTG 8 to 9, and were re-registered in the Windows Service Management Console. Maybe you had the Probe Service running under a different account (than 'LOCAL SYSTEM') before with PRTG 8.

best regards.


Dec, 2013 - Permalink

Thank you for you reply.

Sorry i wasn't clear. The OID that I'm polling must be a delta value. Is there a way to convert the octet string to int and make a delta after that?

In the PRTG i could find the LOCALSYSTEM account configured. But in my server when I type *mmc* there is nothing there. I'm guessing that everything is ok there since we don't have other accounts configured.

How can I troubleshoot that?

Thanks


Dec, 2013 - Permalink

If you can run the script manually from command line (cmd), and it does not run properly in PRTG, please check the Windows Service Management Console (services.msc) on the PRTG Host. There then check the Properties of the Probe Service, for the "Log On"-Account: http://abload.de/img/probeservicespagy.png


Dec, 2013 - Permalink

Thank you for your response.

After i did what you've told me the scripts started working.

Once again Thanks


Dec, 2013 - Permalink

Can I change this without pausing or losing my PRTG monitoring?

I have the same problem, but I can't stop PRTG now.


Apr, 2018 - Permalink

Changing the "Log On"-Account of the Probe Service will definitely require a restart of the Probe Service and thus means a short downtime.


Apr, 2018 - Permalink