kb.paessler.com

Welcome to the Paessler Knowledge Base Archive. Here, you will find articles from kb.paessler.com.Please note that this is a mere import of all questions and the corresponding replies into a new platform. The important articles were transfered manually - articles in this folder were imported automatically. We tried to keep links working, but some may fail. If you find some, please let us know. Please bear in mind that articles in this folder may contain old / outdated data.

Libraries Alerting
PRTG, i am setting up alerts for all my temp sensors, i figured out that wirh libraries it would be easier to configure/deploy/maintain. when i setup all my temp sensors of all the devices i need to monitor, configure a trigger (Thresho...
Tue, 10 Jun, 2025 at 1:09 PM
Monitor specific traffic
Is there a way, with a custom sensor or other sensor, to monitor for specific web traffic? We'd like to get a little more granular on the data e.g. tracking Facebook, twitter, pinterest etc.. traffic. We are currently using net flow to ...
Tue, 10 Jun, 2025 at 1:09 PM
PRTG freezes my system after installation
I have installed PRTG Network Monitor Trial on my Windows Server 2012 Essentials. During or exactly after the installation my whole system freezes. No BlueScreen, no Reboot, i only see my freezed desktop. If i reboot it via reset button/p...
Tue, 10 Jun, 2025 at 1:09 PM
SNMP Custom Sensor Output
I have to monitor if our software has created certain files. I wrote a script on the server and the output of it is monitored through SNMP. If I set up a SNMP Custom String sensor, I can ask it to monitor if a certain string is there. If th...
Tue, 10 Jun, 2025 at 1:09 PM
What does the Cloud HTTP sensor measure as Response Time
The Cloud HTTP Sensor, (currently in Beta: https://www.paessler.com/manuals/prtg/cloud_http_sensor), is returning a "Response Time" channel. What is the measure behind this metric: "time to first byte", "document ...
Tue, 10 Jun, 2025 at 1:09 PM
Problems with SSH Sensor to monitor HP P2000
Since more or less the last two versions from end february and march I determine some Problems to monitor my HP P2000 Storage via SSH Sensor. Befor this Version it was run successful. Since the last to versions i got periodically errors th...
Tue, 10 Jun, 2025 at 1:09 PM
Is their a way to get sensor status bar on other page?
I would like to get a status bar (the one that is located in top right corner and shows new log entries, tickets, up sensors, down sensors, paused sensors, unusual sensors) on different page. I have created page with graphs of most importa...
Tue, 10 Jun, 2025 at 1:09 PM
SMS Alert Issues
Hi Paessler, I've been trying to setup a new SMS alert but keep getting an error when I either test it via the test button or when the sensor it's attached to goes down. Unforunately the error isn't much help. 5/8/2015 12:00...
Tue, 10 Jun, 2025 at 1:09 PM
How can I use PRTG to provide status of a business service?
I would like to be able to use custom sensors to provide a granular indication of a business service status. For example, mail: Is the server overloaded: CPU high, memory load, available disk, etc. The system can gather it, but how can I...
Tue, 10 Jun, 2025 at 1:09 PM
Netflow hardware requirements
Does PRTG support netflow on McAfee routers, they are provided by my ISP AT&T to connect to their MPLS network, the model is 8200 NetGate series. Article Comments Well, if the device supports netflow v5, PRTG will be able to...
Tue, 10 Jun, 2025 at 1:09 PM
Modify Templates and Devices
Good day, is it possible to modify or add sensors to multiple devices to the same time? I only ask because, found that only through templates or cloning can be done, but when I make a template with services (WMI) does not show the service...
Tue, 10 Jun, 2025 at 1:09 PM
Automatische Gruppe hinzufügen
Bei einer automatischen Gruppe hinzufügen, Liste individueller DNS und mit Ping, werden nur die Hosts gefunden welche auch Online sind. Alle anderen Geräte werden nicht aufgelistet aber wäre für uns wichtig, dass wir erkennen welche Host of...
Tue, 10 Jun, 2025 at 1:08 PM
Automatische Suche
Wenn man via "automatische Gruppe hinzufügen" und mit einer Liste "individuelle IP/DNS" Geräte sucht (Sensor PING), werden nur Geräte erkannt und aufgelistet welche auch Online sind. Article Comments Hier gil...
Tue, 10 Jun, 2025 at 1:08 PM
Create ping threshold >Xms for all PING sensors?
Hi there I have multiple devices, of which some have PING as a sensor. Sometimes, the devices upon which the PING sensor monitors,go well above the normal limit of <50ms. I would like to set up a threshold trigger that can be applied acr...
Tue, 10 Jun, 2025 at 1:08 PM
Montitoring ESX Cluster
How can I monitor the performance not even from one single ESX Host but the hole ESX Cluster with PRTG ? I want to define a rule which alerts me when the ESX Cluster CPU Performance increases 15% or something else. Article Comments ...
Tue, 10 Jun, 2025 at 1:08 PM
SNMP sensor cannot be added ..
Im trying to measure bandwidth usage (traffic in, Traffic out, Traffic total,) of 4 users.. Using an intermediate gateway to intercept traffic using PRTG Network Monitor.. I wish to get In out graph . I have server 2008r2 working as a softw...
Tue, 10 Jun, 2025 at 1:08 PM
How can we monitor specific type of traffic like, HTTP,FTP,SMTP etc
I am using SNMP Bandwidth monitoring feature. that gives me total bandwidth against specific ip, can i filter that traffic to know what type of traffic he used like.. which urls, or ftp or smtp traffic.... waiting for Guru response :) ...
Tue, 10 Jun, 2025 at 1:08 PM
Computer group alert false alarm
Hello, I have computers under one group "computers" I want to be able to see the free space, cpu, ping etc etc. But if one computer is shutdown because the user have holidays, it isn't a "alert" as one server alert. ...
Tue, 10 Jun, 2025 at 1:08 PM
Internet Connection bandwidth
We are having issues with Internet Bandwidth slowness in our organization. I want a way to tell when it's getting maxed out or some how to monitor this traffic. Any ideas? I know the paessler engineer at Interop told me to setup an A...
Tue, 10 Jun, 2025 at 1:08 PM
How I can run discovery from api
I need to an auto-dicovery from api of prtg Article Comments Dear Danny Only some parts of PRTG can be controlled via the API. Starting an auto-discovery is too complex to be exposed via the API. Auto-discovery can be autom...
Tue, 10 Jun, 2025 at 1:08 PM
Shoretel VoIP monitoring
Anyone setup sensors on their Shoretel system? From what I found, only the 2 servers can be monitored using SNMP which I have enabled but that doesn't help when it comes to testing the traffic of the phones and switches. Articl...
Tue, 10 Jun, 2025 at 1:08 PM
custom java(wrapped exe) calls oracle stored proc but PRTG reports
Hi all, I created a custom java-based exe for use on advance\exe sensor returning resultset from a call to an oracle stored procedure (inspired by SQLspXML). When testing the executable it generates the xml from resultset and writes to sta...
Tue, 10 Jun, 2025 at 1:08 PM
How can I establish a CIM session with a remote computer using a non-Admin user?
When using a custom sensor, I want to use PowerShell's CIM sessions to query information from a remote computer, but I do not want to require the Windows username/password combo to be an administrator for the remote system. Arti...
Tue, 10 Jun, 2025 at 1:08 PM
Could not connect to database: Can't connect to MySQL server on 'x.x.x.x' (10061) Socket error on co
I am new on PRTG. I want to monitor a database but my sensor returns that issue : Could not connect to database: Can't connect to MySQL server on 'x.x.x.x' (10061) Socket error on connect. WSAGetLastError return 10060($274C) ...
Tue, 10 Jun, 2025 at 1:08 PM
800706BA: RPC Server Is Unavailable
I already checked this page: https://https://helpdesk.paessler.com/en/support/solutions/articles/76000041745 I have a really strange problem with Windows system availability sensor. Every 14 minutes, it returns the following error: 800706...
Tue, 10 Jun, 2025 at 1:08 PM
I usually use STG to monitor trafik, the update period of STG is starting from 0.01 s. What is the m
I usually use STG to monitor trafik, the update period of STG is starting from 0.01 s. What is the minimum update period from PRTG monitoring? Article Comments The minimum interval for PRTG sensors is 1 second and this is not of...
Tue, 10 Jun, 2025 at 1:08 PM
How can I monitor a server ssh without the password?
I'm trying to monitor the status of a server. This isn't a web server, so it doesn't use http or https. However, it does have ssh, but I don't have the passwords. Since the server will respond to http sent to the ssh p...
Tue, 10 Jun, 2025 at 1:08 PM
How to change "Raw data buffer"?
If it's possible ofc. The reason we want to do that is because we have 4gb config file in our environment, and frequently changing some sensors config causes Core Health\Raw Data Buffer values to go 9999. This also causes web interface ...
Tue, 10 Jun, 2025 at 1:08 PM
Powershell Custom Sensor
Hi. I have a Problem with a Custom Powershell Sensor. Version: 15.1.15.2021 I added a testfile "test.ps1" to PRTG Network Monitor\Custom Sensors\EXEXML. Content: Write-Host "<prtg>" "<result>"...
Tue, 10 Jun, 2025 at 1:08 PM
Rescan for new VM's using VMware Virtual Machine (SOAP) Sensor
I've got the VMware Virtual Machine (SOAP) Sensor pointing towards our vCenter server so I can monitor the performance of all the VM's but everytime a new VM is provisioned I have to manually run the 'add sensor' and select ...
Tue, 10 Jun, 2025 at 1:08 PM
How can I connect to an older PRTG server with PRTG for Android?
PRTG for Android no longer supports PRTG 13.x. How can I install an older version that does support it? Article Comments Connecting PRTG for Android to PRTG Version 13 The minimum server requirements for PRTG for Android chang...
Tue, 10 Jun, 2025 at 1:08 PM
Monitor Azure with PRTG?
Hello, I am trying to monitor my Azure platform. I have downloaded the Azure custom sensor, I have created a certificate and uploaded it on my Azure plaform. When I try to launch the executable I have the following error "Could not...
Tue, 10 Jun, 2025 at 1:08 PM
Stop unusually low notifications
Anyway to stop unusually low notifications without turning off unusually high notifications? I can't see why I would care if a ping was unusually low today so long as it's not down or high... Article Comments Hi, This ...
Tue, 10 Jun, 2025 at 1:08 PM
How I can get the ip source of netflow monitor
I need to see the flow between sour ip and destination ip, but with netflow monitor I don't see this. Article Comments Hi, you can use a freeware like WireShark (packet sniffer) on your computer to see the traffic. Make a fi...
Tue, 10 Jun, 2025 at 1:08 PM
Can I change my default homepage?
I created a custom "dashboard" using the Maps feature and then changed that to my homepage. Now when I log into PRTG the charts that I created in Maps are the only thing I can see. I can't get to the rest of PRTG, there'...
Tue, 10 Jun, 2025 at 1:08 PM
Custom snmp readout does not show in the tree view
All other sensors like numeric SNMP values show up the tree view below the green badge. How do I make a custom readout to show up there as well. I have a sensor that reurns a firmware release string like "5.2.200" and I'd lov...
Tue, 10 Jun, 2025 at 1:08 PM
Can I add custom channels to sFlow Custom Sensor
In Top Protocols, the majority of our traffic is "OtherTCP". Unfortunately, we know that we can break this out further as we have some offsite backups and such that use custom ports. Is it possible to add custom protocols/channels...
Tue, 10 Jun, 2025 at 1:08 PM
How can I get all devices for a specific group?
I've been using the /api/table.json?content=devices&output=json&columns=objid,probe... call to get a device with all containing sensors data on it. It works very well, but I now need to get the data for all devices (and t...
Tue, 10 Jun, 2025 at 1:08 PM
Issue with sensor over load balanced network
I have a PRTG instance running behind a router which is load balancing two isp's. For some reason in two separate instances where I am monitoring two outside routers, I am getting a failure when it goes out one of the isp's and not...
Tue, 10 Jun, 2025 at 1:08 PM
Cloudwatch sensor not listing all EC2 instances
I've been setting up a few Cloudwatch sensors, all with the same AWS user (access and private key), and that works fine. However, when presented with the list of EC2 instances and EBS volumes to pick the item to be monitored, it list...
Tue, 10 Jun, 2025 at 1:08 PM
Set sensor to error when website is available
Hi, we have a website hosted outside our network by a third party that should be available only from our public IP addresses, and connection should be rejected from the Internet in general. I have set up a Cloud HTTP sensor to monitor this....
Tue, 10 Jun, 2025 at 1:08 PM
Monitoring Availability of a VPN Service
Hi, Has anyone successfully monitored the availability of an IPSEC VPN service using PRTG? I use Windows Server RRAS for VPN, and would like to monitor the availability of the service from the end user perspective, not the windows servi...
Tue, 10 Jun, 2025 at 1:08 PM
Audible Alarm
How do I add an audible alarm to the Devices > Device tree small property in the map designer? If is drag and drop on top of the tree, all it does is change the entire object to a small row with status icons on it. Thanks Artic...
Tue, 10 Jun, 2025 at 1:08 PM
Custom Netflow v9 Sensor creation
When I try to create the following new channel I get an error: 1:VMware_View
 ( Protocol[UDP] and 
( SourcePort[4172] or DestinationPort[4172] ) ) I've tried many different variations of this with the same result: Ajax Error (B...
Tue, 10 Jun, 2025 at 1:08 PM
proxy authentication
Hi, in ned for the authentication domain username and password. I tried domain\user but this does not work. any suggestion? Article Comments Are you trying to set this up under Setup->Core and Probes? If so, this is a st...
Tue, 10 Jun, 2025 at 1:08 PM
Export a Log of specific status (say "down") in a period of time in a Group of sensors
Hi, I just want to export a log of specific status (say "down") in a period of time in a Group of sensors. The details: We group servers in PRTG. My boss want to export a log of servers with the status "down" in th...
Tue, 10 Jun, 2025 at 1:08 PM
Terminal Services WMI Sensor
Hello, We have a terminal services farm using server 2008R2. i wanted to monitor the # of users on them etc, which i see that PRTG does with no issues. however, when i went to go apply the sensor, i get an error message Class(es) not fo...
Tue, 10 Jun, 2025 at 1:08 PM
How to remove Tickets from WebUI
How can I totally remove the Tickets from the WebUI, including pull down menu and the "Open new Ticket" icon at the top right corner. Article Comments Please add the following line to the css file <prtg application...
Tue, 10 Jun, 2025 at 1:08 PM
incorrect date and time on sensors
I have approximately 150 sensors with data from one week in the future. Now they are not collecting data. Is there any remedy to this problem, Can the data from the future date be remove? Article Comments Has the server experien...
Tue, 10 Jun, 2025 at 1:08 PM
Which Sensor should I use to monitor Bandwidth usage on my Router by connected device?
I want to monitor bandwidth usage (both upload and download) on my router by each connected device for all devices that connect. Article Comments Hi, You can use the SNMP Traffic Sensor to monitor the interfaces of your router...
Tue, 10 Jun, 2025 at 1:08 PM
PRTG Core Server installed on target machine
Hello, I have 2 probes in my PRTG, 1 Probe which is curently supervising only from madison and 1 probe which is curently supervising in cluster from madison (USA) and Lyon (France). I would like to have a third probe which is supervisin...
Tue, 10 Jun, 2025 at 1:07 PM
How can I remove the drop down menu items
I want hide some of the items from the drop down menu, where can I find the CSS tag name for each menu items? Article Comments Hi Raymond, Right-Click the element you want to hide and inspect it with your browser tools. Either...
Tue, 10 Jun, 2025 at 1:07 PM
mib info
Dear Paessler i'm a completely newbie about snmp protocol. For what i have understood, MIB is a file that can only be read. Am i right? Thanks in advance Article Comments That's correct :) MIB is basically a catal...
Tue, 10 Jun, 2025 at 1:07 PM
Monitoring QLogic Fiber Switch Ports
Hey all, I have several QLogic fiber switches (mostly 5802V's). I've imported all the MIB's using the import utility but I don't seem to be able to monitor the "performance" of each port. QLogic has a Performance...
Tue, 10 Jun, 2025 at 1:07 PM
How to list out the Notifications Object ID via HTTP API?
Is there any examples showed how to list out the Notifications Object ID via the HTTP API? for example using the /api/table.xml. Article Comments Hi Raymond, That would be /api/table.xml?content=notifications&columns=obj...
Tue, 10 Jun, 2025 at 1:07 PM
Could not identify port number
I have an ASA 5505 that I am using SNMP Traffic sensor on and I am monitoring mulptile interfaces on that ASA. One of them is giving me an error that says Could not Identify Port Number. The other interfaces are working fine. I have no id...
Tue, 10 Jun, 2025 at 1:07 PM
IMAP Sensor
I want to use the imap sensor to monitor an exchange 2010 mailbox. How do I point the sensor to monitor a specific mailbox as it does not ask me to specify this information when configuring the sensor. Article Comments When crea...
Tue, 10 Jun, 2025 at 1:07 PM
What is username and password for IPMI
Hi, I try to put the IPMI sensors on a switch, but he ask for username and password... But what are they? Are they the administrator username and its password? Or others? Regards Article Comments The IPMI credentials belong in...
Tue, 10 Jun, 2025 at 1:07 PM
SNMP ERROR
Hi, time to time I get error on interface - its looks like prtg cant get snmp data and its happening something about 10 time per day. the prtg located in the same location than the interface that monitor. I dont see such of that problems i...
Tue, 10 Jun, 2025 at 1:07 PM
Group Uptime Report
Hi everyone, I need to create a report that will show me the group uptime as a percentage for Auditing purposes. Ideally, I'd love to have the report tell me the total company uptime. I'm sure this information can be pulled from t...
Tue, 10 Jun, 2025 at 1:07 PM
can Prtg can use Sniffer for data analyses
can Prtg can use Sniffer for data analyses? Article Comments That depends - what exactly are you trying to analyze? May, 2015 - Permalink
Tue, 10 Jun, 2025 at 1:07 PM
Treemap with only down or warning
Hi ! Is it possible to make a treemap showing only sensors that are in warning or down state? I also wounder if it possible do choose specific devices from differnt "folders" to use in the treemap Article Comments ...
Tue, 10 Jun, 2025 at 1:07 PM
Windows Compatibility Options - Timeout Method - not working?
We recently updated PRTG to 15.2.16.2230 and have started getting a LOT of RPC/WMI timeout issues that didn't exist before. I have set the Scanning Interval to 5 minutes on all WMI sensors and the Timeout Method to the recommended 1.5...
Tue, 10 Jun, 2025 at 1:07 PM
Dependencies
I've read the manual sections on Dependencies, and have decided that I should reorganize my PRTG configuration with them in mind. It is a simple home network, but when I enter a dependency, the system doesn't cancel the master ...
Tue, 10 Jun, 2025 at 1:07 PM
Multiple Interfaces/IP on device
Hi, I am pretty sure some one already ask for this information I am looking for How to poll latency from 2 different IP I have device with Ping sensor and I want to add to the same device also another one to check latency via different pat...
Tue, 10 Jun, 2025 at 1:07 PM
Darstellung des Sensors bei Abfrage per SNMP
Für das Monitoring der Hardware unserer Fujitsu-Server habe ich eine SNMP-Bibliothek erstellt. Dies funktioniert soweit auch. Unter anderem überwache ich auch den „pysical device status“ der Festplatten. Der ordnungsgemäße Zustand heißt „on...
Tue, 10 Jun, 2025 at 1:07 PM
Configure PRTG to Monitor Cisco Switch
Hello, I want to configure PRTG to monitor our cisco switches 3560 and 3750 series in the network like alerts if trunk goes up/down, if switch goes offline. CPU and memory and bandwidth. Thanks in Advance. Article Comments De...
Tue, 10 Jun, 2025 at 1:07 PM
IMAP Mailbox - analyze mail content
Hi, I want to analyze the content of mails in an Exchange Mail Account, to check the update job state. > I added a IMAP Sensor to our mail server. > I get connection to the IMAP box - with "Do not check the mail content"...
Tue, 10 Jun, 2025 at 1:07 PM
Update/replace object on a map
I placed a live graph for a ping sensor on a map. A lot of them actually. I'd like to change those to two day graphs. I don't see a way to easily change the object. From what I can see I have to delete it, dig down to it again i...
Tue, 10 Jun, 2025 at 1:07 PM
SIP and IM HTML links in PRTG Maps
Hello, I want to create a custom map object which I can click on to launch a Lync 2010 conversation with my team. I have created the .htm map object and can add it to a Map. When I click on the "View Map" tab next to the "...
Tue, 10 Jun, 2025 at 1:07 PM
Telus v1000h snmp setup
Just installed PRTG, so VERY new to it, and trying to get a sensor set up to monitor bandwidth for a Telus Actiontec v1000h model router with firmware 31.121L.13, but when I go to add the sensor, it times out with the page saying it's t...
Tue, 10 Jun, 2025 at 1:07 PM
HTTP SSL Certificate Expiry sensors
I am trying to add HTTP SSL Certificate Expiry sensors to my PRTG. I have been able to add some, so I believe that my probe is configured properly, but there are a few particular ones that I'm having a problem with: 1. An Ubuntu Lin...
Tue, 10 Jun, 2025 at 1:07 PM
Cancel shut down notification - leave the rest
Hi, I have few laptops under my prtg account. I'm getting notification each time a laptop shuts down. I don't want to receive those notifications but, i do want to recieve all other data notifications. As an example - A Laptop with ...
Tue, 10 Jun, 2025 at 1:07 PM
Create a Certificate Signing Request
Hello I would like to install a valid certificate on my PRTG server. It runs over Windows 2003. I have understood 3 steps : 1 - Create a Certificate Signing Request from my server 2 - Provide the files to my Certificate Organisation and...
Tue, 10 Jun, 2025 at 1:07 PM
I am having an issue with the sensor factory status() function returning 0 for an offline probe
I am having an issue with the sensor factory status() function returning 0 for an offline probe This is only the case when "Calculate the factory channels and use zero as source value" has been selected. Essentially "Calculat...
Tue, 10 Jun, 2025 at 1:07 PM
migration
Hello I a migrating prtg with licensed 1000 sensors to new server, i would like to migrate license as well and shutdown old server, i was stopped by prtg on new server because it is trial version of prtg and i am not able to put there a lic...
Tue, 10 Jun, 2025 at 1:07 PM
Customizing Lookups State values
I'm need more values ??of Lookup State for Customizing sensors. <?xml version="1.0" encoding="utf-8"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:simpleType name="Lo...
Tue, 10 Jun, 2025 at 1:07 PM
Lost Connection to PRTG Server! PE114 error testlogin.htm
Connection Problems LOST CONNECTION TO PRTG SERVER! Can not continue! Server: PRTG URL: /api/public/testlogin.htm failed twice (PE1114, error, ) Time: 16:46:39 We keep getting this error message. We have updated the system and restart...
Tue, 10 Jun, 2025 at 1:07 PM
Resolve DNS problem
On the server hosting PRTG monitoring tool (lets call it SERVER1) , the DNS servers were not set. On the network I am monitoring, i have COMPUTERNAME1(192.168.1.2) and COMPUTERNAME2(192.168.1.3) which are both connected to Internet via th...
Tue, 10 Jun, 2025 at 1:07 PM
Ability to poll through Amzon EC2 proxy?
Hi there I have a Amazon EC2 Linux image running , that accepts SSH tunnels from various Raspberry Pi's and OpenWRT devices (using autossh). So I can login to the EC2 image and SSH back to the devices-these are my "emergency" ...
Tue, 10 Jun, 2025 at 1:07 PM
IMAP sensors "LOGIN Failed"
We have recently started having an issue where our IMAP sensors will alarm with a "Login failed" error. We have also recently migrated to Exchange 2013 which I expect is related but I'm hoping someone else has had a similar ...
Tue, 10 Jun, 2025 at 1:07 PM
Why the log detail is it incomplete
retail back probe Application warning is incomplete, oun it comes it? appears with the % symbol and not the corresponding information probe (Tags): wmiapieventlogsensor Log File: Application Event Type: Warning message: Could not retrie...
Tue, 10 Jun, 2025 at 1:07 PM
Probe IP address sensor
I want to set a sensor on our Probes that will show the local IP address of the device. How can I accomplish this? Article Comments Hello, that should be possible using a Custom Exe Sensor parsing the output of an ipconfig /al...
Tue, 10 Jun, 2025 at 1:07 PM
Administrator Account
our system admin has left the company and has reset the admin account password, is there a way we can get into the account Article Comments Dear Shoole Please go to the PRTG server, open the Windows start menu and start the &q...
Tue, 10 Jun, 2025 at 1:07 PM
Defaults for sensors
Hi, I would like to adjust the defaults for certain sensors like the WMI one's. The default does not fit our need, and now we need to alter them on every object. How can we accomplisch this? Kind Regards, Bastiaan Article Co...
Tue, 10 Jun, 2025 at 1:07 PM
Error: Could not identify port number
I have different Cisco switches (Catalyst, Nexus) configured and working mostly, but for some (random) interfaces SNMP Traffic sensor returns error "Could not identify port number". PRTG version 15.2.16.2229+ . Is there a way to ...
Tue, 10 Jun, 2025 at 1:07 PM
API requests - 404 error
I receive a '404' error when I make any API call. I am trying to learn how to make API requests. I know practically nothing about it, so I imagine I am doing several things wrong. I am using the HTTP API guide, provided in PRTG Set...
Tue, 10 Jun, 2025 at 1:07 PM
Updated PRTG and now it's BROKEN
I updated to V15.2.16.2230 on the Enterprise Console and Network Monitor. After doing so my failover node lost connection to all sensors assigned to it and I cant connect to either PRTG server under 'All PRTG Server Connections' in...
Tue, 10 Jun, 2025 at 1:06 PM
tree structure organized not based on probes
we have a tree structure (unit- department - area- node) to reach some "special nodes" we have to place in the area a remote probe - but the "sensors, servers,.." still should be displayed under the area and not on top...
Tue, 10 Jun, 2025 at 1:06 PM
Last Up, Last Down Confusing
Dear Support, Would you please explain the following? Status: Up (Downtime: 1h 27m) Last Up: 25.05.2015 09:01:10 (0 s ago) Last Down: 25.05.2015 09:00:49 (21 s ago) Article Comments The sensor had a scan result that repr...
Tue, 10 Jun, 2025 at 1:06 PM
IIS monitoring resource usage per app pool
Is it possible to use PRTG to monitor the resource usage per IIS app pool? (in a shared hosting environment, there are multiple sites and customers on a single server, so to get the metrics properly, we would need to know how much a single ...
Tue, 10 Jun, 2025 at 1:06 PM
Sensor Factory substract of values
good morning, I need to create a sensor factory once a week take the maximum value of the previous week and subtract this value to the current. I have a factory sensor which adds the value of drops of 4 interfaces. Once a week, i want this ...
Tue, 10 Jun, 2025 at 1:06 PM
SNMP Dell System Health is not a valid integer value
Getting the above error on 2 of our Dell servers. Article Comments Can you please try walking the OID 1.3.6.1.4.1.674.10892.1.200.10.1 with the SNMP tester and post the results here? Jan, 2014 - Permalink Thanks for the ...
Tue, 10 Jun, 2025 at 1:06 PM
Sorting a report Alphabetically
I am part of the non-technical team, sitting in the PMO, and we run a report each week which highlights peaks. Since the upgrade, the report no longer reports the circuits alphabetically and the order changes whenever a new circuit is a...
Tue, 10 Jun, 2025 at 1:06 PM
PRTG Message OK (The Virtual Machine is Powerred Off)
Dear All,, Need Advise.. My PRTG cannot display the graph, because the PRTG Message OK (The Virtual Machine is Powered Off ). I use Vcenter 5.5 with CentOS, and PRTG Version "PRTG Network Monitor 13.1.2.1462 ". Thanks, mrahf...
Tue, 10 Jun, 2025 at 1:06 PM
login_failed
I am seeing the following log entries after receiving the "Overload Protection is Active Click for details" message. I read the thread at https://https://helpdesk.paessler.com/en/support/solutions/articles/76000041606. The prtgadm...
Tue, 10 Jun, 2025 at 1:06 PM
Service does not start PRTG Core Service
Service does not start PRTG Core Service Error: could not start web server for http: (local ip): "" is not a valid integer value tried to reinstall did not help Article Comments Hello, thank you very much for your ...
Tue, 10 Jun, 2025 at 1:06 PM
Core Server
Hi, I can´t start the Core Server after the nstallation. I am using Windows 8.1 and the error message i got when I tried with: 1. HTTP (port 80) as TCP port and localhost as IP: "Sorry, could not start PRTG Core Server (Web serve...
Tue, 10 Jun, 2025 at 1:06 PM
PRTG SNMP Probe Issues
Hello I am trying out the free version of PRTG. One of the basic tests I am doing is to check if SNMP polling is working from the PRTG station. The OID I am polling is 1.3.6.1.2.1.1.5 for sysName. I can get a result using snmpwalk from...
Tue, 10 Jun, 2025 at 1:06 PM
How can we display "Down for" times on the PRTG desktop app?
We would like a "Down for" column in the PRTG app. The app would become a lot more useful for us if we knew how long the devices listed were down without having to click on anything else. Article Comments As of right n...
Tue, 10 Jun, 2025 at 1:06 PM