Troubleshooting tips for prtg errors

If you receive a prtg error, this article was written to help you.

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prtg error

Since we want to keep it as easy as possible for you as a sysadmin, here’s a little glossary onand more common error codes, problems, and messages that you may encounter on your system. time.

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Sometimes clients use the problems reported by PRTG Network Monitor when setting up monitoring of their systems using Simple Network Management Protocol (SNMP). Most

In some cases, these problems are the result of incorrect settings or SNMP settings.

This article provides an overview of the most common causes of SNMP monitoring problems.

First Steps

How do I reset PRTG?

In the Probe Management Tools section, you can either restart all probes (continue! In the Restart All Probes section), if desired, restart a specific probe (click Restart Probe in the Probe [number] [name] section). Windows Trial Service will restart your computer even after updating the critical PRTG server.

Important! Before diving into troubleshooting, you should have a good understanding of SNMP principles and performance!

For an overview of SNMP technology, see Paessler IT Explained: SNMP.
You can find an overview of SNMP and MIBs, OIDs in How do SNMPs, MIBs and OIDs work?
Suitable SNMP sensors can be found under Which SNMP sensors does PRTG offer?

Basic SNMP Troubleshooting

1. Basic SNMP Requirements For SNMP Ambition Device

Enable SNMP on the device. For more information, see How do I install SNMP on Windows service systems?
Allow SNMP access for the computer running PRTG Network Monitor in the device settings.
Allow User Data Protocol (UDP) packets to be sent from the machine running PRTG to the device you want to monitor and vice versa. If the device and PRTG are on opposite sides of the firewall software, make sure UDP access to Connector 161 (SNMP) is allowed. Moreover, the way back must be open. See the following articles for more information:
- Microsoft: open ports in firewall
- How do I usually change the SNMP port number in Windows?
Make sure the device under test has the latest firmware! If an SNMP sensor (for example, a regular SNMP traffic sensor) receives very little packets from the monitored device, a firmware update for that device will likely help.
Look, SNMP doesn’t work either! Could you help me ?! on our Paessler website.

2. PRTG Settings For SNMP

SNMP partnership error

SNMP version 1
SNMP version 2c (recommended)
SNMP 3

It is important to know which SNMP service to choose because if the product is not supported by the server or monitored device, you may receive an error message. Unfortunately, only this minimal information, for example, does not allow a connection to be established.

Check or change the SNMP version previously used by PRTG in settings | Identifiers for SNMP devices in an engine or group.

SNMP Authentication Error

Community Strings: A community string is similar to a user ID or password in the sense that it allows you to connect to statistics for a device. PRTG sends one with all SNMP requests. If the community string is often incorrect, the device denies requests and takes no action. This value is case sensitive!
Username
Passwords

Error messages indicating something is wrong. Often these terms are:

Failed to establish connection
Error # 10060
Error number 2003

SNMP Performance Limits

SNMP v3 recently had software dependent performance limitations due to SSL encryption.If anyone is having trouble overloading SNMP with v3, try these options:

Increase the monitoring interval for SNMP v3 sensors. PRTG can currently typically handle about 40 requests from the second and primary computer, depending on the user’s system. This means that on a typical 1.x GHz computer with cores, two people can monitor approximately 5000 SNMP v3 alarm systems with a scan interval of 60 seconds.
Spread SNMP v3 sensors across two or more probes if specific SNMP channel values increase with probe interval delay or open core health / probe health probe probe requests.
Switch to SNMP v1 or if v2 works without encryption, as these types do not have these restrictions.

Target SNMP Monitoring Software

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Expected data from a probe via SNMP may not work (polling localhost, 127.0.0.1, or :: 1). This isIt will appear if you add this device to PRTG under the IP address it has as part of your network and create an SNMP probe on this device.

Advanced SNMP Troubleshooting

When users need to troubleshoot their SNMP sensors and verify all basic SNMP requirements, they can debug SNMP activity to find notifications and / or data problems in SNMP monitoring configurations.

What does it mean when PRTG puts a sensor into unusual state?

“Unusual” PRTG detection An unusual state is a state built into the autopilot that is intended to represent when an absolute gauge exceeds standard average usage limits based on a particular programming structure.

For Paessler, this is a Paessler SNMP Tester that performs simple SNMP queries on a device on your network. If the connection works with this tool, you understand that it also works with PRTG.

Troubleshooting SNMP Actions – Steps

Access to SNMP Paessler tester.
Download the zip file and follow the instructions on the page.
Find on the target device the system running your PRTG probe. Analyze only after working hours, and then for other values.
Check to see if reviews are coming back.

How can I test my SNMP device for Awesome?
How to Handle Subkey Unablefail “or” Error 10060 “when using SNMP?

Import MIB

prtg error

Many network devices and programs come with Management Basic Information (MIB) files that describe settings and read documents available for monitoring via SNMP. With the MIB importer along with Paessler, you can import most of these MIB files and convert them to OIDs for PRTG. This makes it easy to configure SNMP library sensors.For more information see Paessler MIB Importer in addition to Converter.

Note. PRTG creates a log file mibparser.log for debugging MIB imports. This file contains all warnings and errors that may occur while reading the MIB file. You can view the file in the MIB subfolder of the PRTG program directory.

Tips & Tricks

How do I disable PRTG?

Run the Uninstall PRTG Network Monitor command from the Windows Start menu or open the Windows Control Panel and select the required entry in the Programs and Features section.If necessary, confirm the question in the “Windows User Account Control” section by clicking “Yes” so that you can undoubtedly uninstall the program.

SNMP, Windows And PRTG

How do I install the SNMP service on Windows systems?
What security aspects should I consider when working with SNMP versus Windows?
I want to use SNMP sensors that use WMI sensors. What can I do?
What SNMP sensors does PRTG Mac offer?

SNMP Operating System Home And PRTG

How do I enable SNMP for Mac OS so that it can also be monitored with PRTG?

SNMP, Linux And PRTG

Checklist: Configuring SNMP on Linux

SNMP And PRTG Traps

Can the application send SNMP traps using PRTG?
How to use an interrupt receiver like PRTG and what are its limitations?
How to check the SNMP trap receiver sensor?

SNMP Sensors And Devices

How can I see all interfaces when adding an SNMP sensor to find my Cisco device?
My Cisco switch monitoring may not work properly with SNMP. What can I do?
No similar name (SNMP error # 2) for NetApp sensors
NetApp SNMP System Status: Error 137
SNMP Error # 223 on HP C3000 Server Blade
My Juniper switches are showing false 0, almost no value. What can I do?
What can I check if SNMP and SSH sensors are giving timeout and authentication errors?