PRTG Network Monitor (PRTG, successor of Paessler Router Traffic Grapher) Is there a way to view or configure PRTG to tweak sampling of managed elements, if so how can I view or configure this. 2 Manage a PRTG Hosted by Paessler Subscription; 4 Installing the Software. This option is not available when the sensor runs on the Hosted Probe of a PRTG hosted by Paessler instance. If you want to use a Windows local user account on the target device, enter the computer name here. 3 Install a PRTG Core Server; 4. In current PRTG versions, this is our recommendation to achieve best performance and stability. Mit unserem PRTG WMI Tester können Sie schnell und einfach feststellen, ob Sie über WMI von Ihrem PRTG-Server auf das Zielgerät zugreifen können und welche Ursachen die Fehler haben. The API documentation can be found in the PRTG web interface by going to Setup > PRTG API > Custom Sensors. Enter a time span in minutes after which new flow data must be received. This is built into most modern IDE hard disk drives. Use PRTG Desktop to completely control one or more PRTG installations with one app and show data of all your independent PRTG core servers including PRTG hosted by Paessler. PRTG Manual: WMI Volume Sensor. WMI runs automatically at system startup under the LocalSystem account. I get 44 errors, Regardless of what I do Wmi Timeout Powershell customers have found that opening TCP port 1091 helped them. This capability is not restricted. Everybody knows that security is a big deal, especially when your servers are internet-connected. Hi guys, It seems like the timeout set into the plugin check_wmi_plus. 8 Install the Enterprise Console; 3. 1 Create a PRTG in the Cloud Instance; 3. 4 Install a PRTG Cluster; 4. 2 Update From Previous Versions; 4. PRTG will create two sensor channels (free space in percent and bytes) for each partition you choose in the Add Sensor dialog. Also, when I go to the individual machine in Spiceworks, it ways 'Windows Authentication Error'. PRTG Desktop is a new native PRTG application that runs on supported Windows and macOS systems. 1 Architecture and User Interfaces; 4. Because the number of available threads is limited to 500, PRTG restarts the probe service by design if the number of sensors that are in a timeout state. Why there isn't already such a sensor in PRTG is a bit strange, to be honest. If you use other user accounts, interfaces, or nodes, you might not see all of the options in the way described here. A firewall is blocking access to the remote computer. Prtg Plugins Admin Guide 1. pl is ignored when the check is executed by modgearman. As soon as outages occur the software will alert you by sending emails, SMS, pager messages, and other notifications. Next, please enter the location of your PRTG server. 3 Using PRTG Hosted by Paessler. As WMI access over a network is not quite trivial, the Paessler WMI Tester is a tool for testing the accessibility of WMI in a quick and easy-to-use way. This is important, for example, when using Voice over IP (VoIP) over this connection. Our support team would then recommend using fewer WMI sensors, moving sensors to remote probes, or using longer scanning intervals. PRTG is the network monitoring software that lets you setup and run a usage monitoring station for your network. Therefore, you will not see all setting fields in this dialog. 3 Install a PRTG Core Server; 4. you can even export them to CSV or XML to be processed externally. To change/tweak the WMI timeout value, you can instantiate a WMI or WMI searcher object and set its timeout property, which is a time span object. Deprecated: Function create_function() is deprecated in /home/forge/primaexpressinc. 2 Update From Previous Versions; 3. Your Windows Management Instrumentation Query Language (WQL) query code must be stored in a file on the system of the probe the sensor is created on. In current PRTG versions, this is our recommendation to achieve best performance and stability. If the timeout is reached and no new data is received, the sensor may switch to an Unknown status. Microsoft Consultant Exchange & Skype for Business (m/w) Kommen Sie zu Net at Work. إعجاب إعجاب. Define the authority for Windows access. 2 Manage a PRTG in the Cloud Subscription; 4 Installing the Software. If the timeout is reached and no new data is received, the sensor may switch to an Unknown status. 2 Update From Previous Versions; 3. For client PCs monitored with WMI only Windows XP and later are officially supported (XP, 2003, Vista, 2008, etc. PRTG Manual: Auto-Discovery The PRTG auto-discovery is a great way to automatically create a sophisticated and concise set of sensors for your complete network. 8 Install the Enterprise Console; 3. 3095 which I checked in official prtg release versions, I could not find this version in your list of releases any more. PRTG's auto-discovery function is a great way to automatically create a sophisticated and concise set of sensors for your complete network. PRTG Manual: Add a Group This documentation refers to the PRTG System Administrator user accessing the Ajax interface on a master node. If you want to use a Windows local user account on the target device, enter the computer name here. Compared to PRTG's other bandwidth monitoring technologies via flows, packet sniffing, or WMI, the SNMP option creates the least CPU and network load. ), allowing to monitor your network systems for speed and failures. 6 Activate the Product; 4. While Windows Management Instrumentation (WMI) sensors are showing timeouts, PRTG’s Local Probe continues to send WMI requests to the target machine and opens new threads at the same time. A firewall is blocking access to the remote computer. It is an interface through which applications can push notifications to the user of the computer. LICT IT Department-Application Program-PRTG Network Monitor -Page 7 - Enter Administrator Credentials for Windows Systems In order to use WMI (Windows Management Instrumentation), which is the standard monitoring technology for Windows PCs and servers, PRTG needs to have administrator access to our network, this conatins our domain name. PRTG 8 Manual: Auto-Discovery. WBEM_E_NO_KEY. I've tried every possibility like access, firewall, antivirus etc. the WMI processes was using around half a gigabyte of memory. PRTG bandwidth and network monitor is quick and simple to use. If the timeout is reached and no new data was received during this time, the sensor switches to an Unknown status. Our support team would then recommend using fewer WMI sensors, moving sensors to remote probes, or using longer scanning intervals. Enter a timeout in seconds for the request. WMI only (recommended): Query data via WMI only. It may be the WMI repository is corrupt. 4 Install a PRTG Cluster; 4. 2 Update From Previous Versions; 4. 7 Install a PRTG Remote Probe; 4. It tries to connect and shows the response time of the server. Windows management instrumentation service stopping. We recommend a manual restart every few weeks. WMI Net Traffic. 3 Install a PRTG Core Server; 3. You can override certain headers using the Message Header (MSH) sensor setting. One of our admins had configured PRTG and left the organization long back. Adapt the notification system to suit your needs and schedule alerts (such as 'no low priority alerts at night'), or avoid alarm floods by using dependencies and acknowledging. WMI only (recommended): Query data via WMI only. Sensor script: EXEXML\wmi-system-computer1. 3 Install a PRTG Core Server; 4. And if you need a longer timeout than the default of 5 seconds, you can also change this. It tries to connect to the specified TCP/IP port number of a device and waits for the request to be accepted. This capability is not restricted. Limited to 50 Sensor Channels. 1 Download PRTG; 4. 7 Install a PRTG. Scheduled restart of PRTG services: Restart all PRTG services on the system where this probe runs on. 1 Download PRTG; 3. This sensor type connects to the parent device via Windows Management Instrumentation (WMI) and monitors the health of IDE disk drives on the target system, using Self-Monitoring, Analysis and Reporting Technology (S. WMI is based on COM and DCOM and is integrated in Windows 2000, XP, 2003, Vista and later. PRTG Manual: WMI Remote Ping Sensor The WMI Remote Ping sensor connects remotely to a Windows system using Windows Management Instrumentation (WMI), then performs an Internet Control Message Protocol (ICMP) echo request ("Ping") from this device to a specified target. If you choose this option on the local probe, the PRTG. You can initiate a restart of your PRTG core server and probes under System Administration—Administrative Tools in the PRTG web interface. Die Konfiguration ist komplex, zum Beispiel bei den Zugriffsrechten oder wenn ein Monitoring außerhalb der Domäne aufgesetzt wird. WBEM_E_NO_KEY. For video instructions, please see the More section below. 5 Enter a License Key; 3. SNMP must be enabled on the device and the machine running PRTG must be granted access to the SNMP interface. We recommend that you set the timeout one minute longer than the respective timeout configured in your hardware router device. If this is not possible, a sensor will return no data. This is useful if you use a lot of sensors and want to avoid high resource usage caused by processes running at the same time. Workaround Important This section, method, or task contains steps that tell you how to modify the registry. 7 Install a PRTG. If you understand Italian, take a look at the case study for a deeper dive. Define the authority for Windows access. Maybe/likely the 0x80041032 WMI errors are non-sense generated by a canceled request. Use PRTG Desktop to completely control one or more PRTG installations with one app and show data of all your independent PRTG core servers including PRTG hosted by Paessler. If you want to use a Windows domain user account (recommended), please enter the (Active Directory) domain name here. 1 Download PRTG; 4. PRTG Manual: Group Settings. Die Konfiguration ist komplex, zum Beispiel bei den Zugriffsrechten oder wenn ein Monitoring außerhalb der Domäne aufgesetzt wird. Paessler is the producer of PRTG, the highly powerful network monitoring software PRTG monitors your whole IT infrastructure 24/7 and alerts you to problems before users even notice Find out more about our free monitoring tools that help system administrators work smarter, faster, better. 7 Install a PRTG Remote Probe; 4. WMI only (recommended): Query data via WMI only. I ended that process and straight away the PRTG errors disappeared. If you want to use a Windows local user account on the target device, enter the computer name here. The hardware required for the PRTG core server depends very much on the number of sensors you are run-ning, as well as on a few additional key values such as the. The WMI queries are CPU-intensive, and too many simultaneous WMI queries put a heavy load on the PRTG server, which sometimes resulted in a slow GUI and poor server performance. If this is not possible, a sensor will return no data. It can show the following: Execution time of the monitoring request. 3 Install a PRTG Core Server; 3. 4 Install a PRTG Cluster; 4. 7 Install a PRTG. PRTG on-premises also supports SMS text messages and executing EXE files. Define the authority for Windows access. template) format for the REST Custom sensor, and HL7 message files for. Your Windows Management Instrumentation Query Language (WQL) query code must be stored in a file on the system of the probe the sensor is created on. The WMI Volume sensor monitors the free disk space on a drive, logical volume, or mount point using Windows Management Instrumentation (WMI). 2 Update From Previous Versions; 4. We recommend you use the "Auto-Update" feature to update your PRTG installation. This is used for Windows Management Instrumentation (WMI) and other Windows sensors. Everybody knows that security is a big deal, especially when your servers are internet-connected. I have a powershell script that uses WMI to query an array of servers. The Add Group dialog appears when adding a new group to a parent group. This will stop the launch/shutdown cycle. Most clients that I attempt to query WMI remotely have no problem while others simply hang my script for minutes and even infinitely. This capability is not restricted. A provider failed to report results within the specified timeout. The hardware required for the PRTG core server depends very much on the number of sensors you are run-ning, as well as on a few additional key values such as the. This sensor monitors an area of storage on a hard disk. Compared to PRTG's other bandwidth monitoring technologies via flows, packet sniffing, or WMI, the SNMP option creates the least CPU and network load. PRTG Manual: WMI HDD Health Sensor The WMI HDD Health sensor connects to the parent device via Windows Management Instrumentation (WMI) and monitors the health of IDE disk drives on the target system, using Self-Monitoring, Analysis and Reporting Technology (S. O PRTG enviará pacotes de dados automaticamente entre as duas sondas PRTG, monitorando assim a qualidade da conexão (que inclui um teste de perda de pacotes). It only shows the setting fields that are imperative for creating the group. WMI Disk Free Space. We have been a PRTG customer for a few years now, on their 100 sensor package. it works for 95% of the servers. WMI only (recommended): Query data via WMI only. This option is not available when the sensor runs on the Hosted Probe of a PRTG hosted by Paessler instance. Die Konfiguration ist komplex, zum Beispiel bei den Zugriffsrechten oder wenn ein Monitoring außerhalb der Domäne aufgesetzt wird. WMI works like a database and offers a variety of useful monitoring values of computers running Microsoft Windows. 5 Enter a License Key; 4. I hope if I answered your questions. This exe should be placed in D:\prtg It is only used to retrieve information over telnet from my Cisco SG300-10 switches. If you want to use a Windows local user account on the target device, please enter the computer name here. Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics. If you use other user accounts, interfaces, or nodes, you might not see all of the options in the way described here. The current Version of the PRTG is 7. As WMI access over a network is not quite trivial, the Paessler WMI Tester is a tool for testing the accessibility of WMI in a quick and easy-to-use way. Unser Team arbeitet kollegial und kooperativ – ständiger Austausch und Weiterbildung sind bei uns Standard. Sometimes, they might timeout for a minute, but they do come back. A provider failed to report results within the specified timeout. 7 Install a PRTG Remote Probe; 4. Use PRTG Desktop to completely control one or more PRTG installations with one app and show data of all your independent PRTG core servers including PRTG hosted by Paessler. template) format for the REST Custom sensor, and HL7 message files for. Hoping one of my fellow PRTG users has ran into this problem. We've grabbed the most similar products to PRTG, most of which have the same features and others have more features and better (lower) price points, and listed them below. Paessler AG's award winning PRTG Network Monitor is a powerful, affordable and easy-to-use Unified Monitoring solution. 5 Enter a License Key; 4. If you want to use a Windows domain user account (recommended), please enter the (Active Directory) domain name here. Situation; various servers on a Lan alarmed with NTP alert. Reasons to Choose SNMP Monitoring SNMP is the most commonly used method mainly because it is easy to set up and requires minimal bandwidth and CPU cycles. The Add Group dialog appears when adding a new group to a parent group. 3 Install a PRTG Core Server; 4. 1 Create a PRTG in the Cloud Instance; 3. Here is a class reference. You can override certain headers using the Message Header (MSH) sensor setting. The WMI queries are CPU-intensive, and too many simultaneous WMI queries put a heavy load on the PRTG server, which sometimes resulted in a slow GUI and poor server performance. PRTG 8 Manual: Auto-Discovery. It tries to connect to the specified TCP/IP port number of a device and waits for the request to be accepted. PRTG Manual: Group Settings. The WMI Service sensor monitors a Windows service using Windows Management Instrumentation (WMI). 7 Install a PRTG Remote Probe; 4. WMI cannot execute the put operation because the provider does not allow it. php on line 143 Deprecated: Function create_function() is. PRTG Manual: Group Settings On a group's overview page, click the Settings tab to change settings. 2 Manage a PRTG in the Cloud Subscription; 4 Installing the Software. 3 Install a PRTG Core Server; 3. Scheduled restart of PRTG services: Restart all PRTG services on the system where this probe runs on. 1 Download PRTG; 4. I having an issue with my apm where the wmi process monitors are timing out at the default of 300 seconds. 4 Install a PRTG Cluster; 4. We recommend that you set this one minute longer than the respective timeout configured in your hardware router device. Top 5 Troubleshooting Tips for Your WMI Problems. 38, the Connection Timeout and Shell Timeout settings of your running SSH sensors will be reset to a default value! This approach will avoid potential errors if you have set individual timeout values. Unable to add WMI sensors despite following troubleshooting steps. WMI only (recommended): Query data via WMI only. Add Device. PRTG monitors traffic, applications, availability, bandwidth and much more. Please check your WMI configuration and especially consider the WMI settings on the target computer. If you understand Italian, take a look at the case study for a deeper dive. Get Transaction Sensor URL settings from PRTG with Powershell 01 Sep 2016 If you're looking for a way to interrogate multiple HTTP Transaction Sensors in your PRTG monitoring installation using a script then this blog post is for you. The sensor monitors an area of storage on a hard disk. Changing the WMI Timeout Value for a Series of WMI Queries. Therefore, you will not see all setting fields in this dialog. a web interface) on devices that do not have SNMP or WMI. 7 Install a PRTG Remote Probe; 3. The following settings for this sensor differ in the Add Sensor dialog in comparison to the sensor's settings page. Here is a list of the custom notifications that you can find there. The WMI Custom sensor performs a custom query via Windows Management Instrumentation (WMI) and monitors numerical values (integers and floats). PRTG bandwidth and network monitor is quick and simple to use. The desktop app is the one area where it do with some improvement. The Add Group dialog appears when adding a new group to a parent group. 2 Update From Previous Versions; 4. bat hostname. Add Device. 3 Using PRTG in the Cloud. 8 Install the Enterprise Console; 3. Depending on your settings, it can alert you either when the monitored port is open, or when it is closed. As WMI access over a network is not quite trivial, the Paessler WMI Tester is a tool for testing the accessibility of WMI in a quick and easy-to-use way. Get Transaction Sensor URL settings from PRTG with Powershell 01 Sep 2016 If you're looking for a way to interrogate multiple HTTP Transaction Sensors in your PRTG monitoring installation using a script then this blog post is for you. WMI monitoring In order to use WMI (Windows Management Instrumentation) monitoring you will need a Windows network. We've grabbed the most similar products to PRTG, most of which have the same features and others have more features and better (lower) price points, and listed them below. 1 Create a PRTG in the Cloud Instance; 3. Please enter an integer value. Unable to add WMI sensors despite following troubleshooting steps. 2 Manage a PRTG in the Cloud Subscription; 4 Installing the Software. PRTG monitors traffic, applications, availability, bandwidth and much more. In order to be able to monitor remote machines, PRTG's WMI sensor needs Active Directory account credentials to have access to the WMI interface. WMI cannot execute the put operation because the provider does not allow it. PRTG Manual: DHCP Sensor The DHCP sensor monitors a Dynamic Host Configuration Protocol (DHCP) server. I have the following code that checks the status of a service on a remote computer. Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics. Is there a way to specify that there should be a timeout when attempting to connect so that the connection will fail and I can move on and gracefully exit the thread?. PRTG Network Monitor. It only shows the setting fields that are imperative for creating the group. The Root Group is Special. The tool has some amazing reports which can be run on-demand or be scheduled and then be viewed as HTML or PDF. 3 Using PRTG Hosted by Paessler. pdf), Text File (. PRTG Manual: Group Settings. 1 Download PRTG; 4. Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics. I previously had more PCs with problems, but after clearing up some DNS entries, I am left with these 5 that cannot connect properly. If no objects are received, make sure that the timeout value (lTimeout) is greater than 0 and that WBEM_S_TIMEDOUT (0x40004) is not being returned. With this sensor you'll be able to access detailed information on the following performance counters:. When an administrator wants to protect a machine from possible remote attacks, a common quick-reflex defense is to block incoming traffic on ports 80 and 443, so that no messages can be sent to the machine via the internet. 3 Install a PRTG Core Server; 4. One of our admins had configured PRTG and left the organization long back. There are already many free, useful scripts, plugins, and add-ons for PRTG in the PRTG Script World available for download. For further suggestions what to do, see I have tried a lot of things to fix my WMI. In current PRTG versions, this is our recommendation to achieve best performance and stability. 4 Install a PRTG Cluster; 4. 1 Download PRTG; 4. 6 Activate the Product; 3. This sensor type connects to the parent device via Windows Management Instrumentation (WMI) and monitors the health of IDE disk drives on the target system, using Self-Monitoring, Analysis and Reporting Technology (S. Find out how you can reduce cost, PE009) WMI Process sensor only. If you want to use a Windows domain user account (recommended), enter the (Active Directory) domain name here. The raw value is in seconds, so by giving this number to PRTG it will give us uptime in d h m s. 1 Create a PRTG in the Cloud Instance; 3. WMI Disk Free Space. If you understand Italian, take a look at the case study for a deeper dive. If this is not possible, a sensor will return no data. I hope if I answered your questions. Enter a time span in minutes after which new flow data must be received. All of which can be easily and quickly checked using PRTG’s Custom Sensors, as we saw in the previous article Your Secret Weapon for Monitoring Exchange: Custom WMI, PerfMon and Script Sensors. PRTG will run all custom script sensors having the same mutex name serially (not simultaneously). The WMI Volume sensor monitors the free disk space on a drive, logical volume, or mount point using Windows Management Instrumentation (WMI). For more information about custom sensors based on SNMP, WMI, Packet Sniffing, and xFlow, see the respective custom sensor types. 4 Install a PRTG Cluster; 3. 6 Activate the Product; 4. The Add Group dialog appears when adding a new group to a parent group. >>>Jump to the WMI monitoring tool list<<< It is a part of all flavors of Windows, including Windows Server. If the reply takes longer than this value defines. We recommend that you set the timeout one minute longer than the respective timeout configured in your hardware router device. Define the authority for Windows access. The WMI Custom sensor performs a custom query via Windows Management Instrumentation (WMI) and monitors numerical values (integers and floats). PRTG Manual: WMI HDD Health Sensor The WMI HDD Health sensor connects to the parent device via Windows Management Instrumentation (WMI) and monitors the health of IDE disk drives on the target system, using Self-Monitoring, Analysis and Reporting Technology (S. PRTG does not support more than 50 sensor channels officially. With this sensor you'll be able to access detailed information on the following performance counters:. Next, please enter the location of your PRTG server. When using a cluster installation, failover nodes are read-only by default. Limited to 50 Sensor Channels. 3 Install a PRTG Core Server; 3. The maximum number of simultaneous users that can be simulated successfully depends on the power of the client machine Webserver Stress Tool runs on, as well as the Windows version used on that machine. Intermittently, our WMI sensors stop receiving new data in PRTG. For example a specific URL, the traffic of a network connection, a port of a switch or the CPU load on a machine. All important technologies are supported: SNMP: ready to use and custom options WMI and Windows Performance Counters. Additionally, if you enable Monitor extended values in the sensor settings, it can show these parameters: CPU usage in percent; Pagefile usage in. 7 Install a PRTG Remote Probe; 4. If the rumors are false about SNMP Windows Service and they will keep on chugging, i have no issues using them, but i would prefer to just get an SNMP agent in, done and dusted and not have to redo it all in. This is used for Windows Management Instrumentation (WMI) and other Windows sensors. PRTG Network Monitor includes more than 200 sensor types for all common network services, including HTTP, SMTP/POP3 (email), FTP, etc. 2 Update From Previous Versions; 4. It shows the retrieved value. 4 Install a PRTG Cluster; 4. Packer Powershell Script Parameters. Maybe/likely the 0x80041032 WMI errors are non-sense generated by a canceled request. We recommend you use the "Auto-Update" feature to update your PRTG installation. Compared to PRTG's other bandwidth monitoring technologies via flows, packet sniffing, or WMI, the SNMP option creates the least CPU and network load. If the timeout is reached and no new data was received during this time, the sensor switches to an Unknown status. We recommend that you set the timeout one minute longer than the respective timeout configured in your hardware router device. PRTG 8 Manual: Auto-Discovery. PRTG Manual: WMI Remote Ping Sensor The WMI Remote Ping sensor connects remotely to a Windows system using Windows Management Instrumentation (WMI), then performs an Internet Control Message Protocol (ICMP) echo request ("Ping") from this device to a specified target. Name Resolution. I get 44 errors, Regardless of what I do Wmi Timeout Powershell customers have found that opening TCP port 1091 helped them. An introduction to writing your own custom EXE/Script Advanced sensors for PRTG Network Monitor. In my case it's being used for my D-Link DNS-323 NAS. A firewall is blocking access to the remote computer. If you choose this option on the local probe, the PRTG core server will restart as well. When i contacted SW about this they indicated it was a timeout issue and to increase my timeout otherwise there was nothing they could do. PRTG's auto-discovery function is a great way to automatically create a sophisticated and concise set of sensors for your complete network. This indicates that there is a problem with the host's WMI system. WMI only (recommended): Query data via WMI only. com/gxubj/ixz5. It may be the WMI repository is corrupt. Enter a time span in minutes after which new flow data must be received. 4 Install a PRTG Cluster; 4. PRTG Manual: Root Group Settings On the Root group's overview page, click on the Settings tab to change settings. I ended that process and straight away the PRTG errors disappeared. The process can be a Windows EXE file, or a DLL, BAT, CMD, VBS, or PowerShell file, as well as a Python or SSH script. Hope this helps! Butch. Mit unserem PRTG WMI Tester können Sie schnell und einfach feststellen, ob Sie über WMI von Ihrem PRTG-Server auf das Zielgerät zugreifen können und welche Ursachen die Fehler haben. The Paessler website lets choose between two different versions of PRTG. 1 Download PRTG; 4. The WMI queries are CPU-intensive, and too many simultaneous WMI queries put a heavy load on the PRTG server, which sometimes resulted in a slow GUI and poor server performance. PRTG Manual: Group Settings On a group's overview page, click on the Settings tab to change settings. 9 Uninstall PRTG Products; 4 Understanding Basic Concepts. Access can take place locally or remotely via a network connection. For example a specific URL, the traffic of a network connection, a port of a switch or the CPU load on a machine. The WMI query came back empty while PRTG expected a result. O PRTG enviará pacotes de dados automaticamente entre as duas sondas PRTG, monitorando assim a qualidade da conexão (que inclui um teste de perda de pacotes).