PRTG Manual: Update From Previous Versions
If you already have a previous software version installed, there are several things you need to consider before you update to the current PRTG version. See section Detailed System Requirements for all requirements for the current PRTG version.
We recommend that you always have a proper backup of your monitoring data and configuration. In most cases, both are maintained when updating. Anyway, we recommend a backup before updating. For details, see the Knowledge Base: How do I back up all data and configuration of my PRTG installation?
In certain cases, antivirus software like Windows Defender interferes with the PRTG installer. This might cause high CPU load on the PRTG server, which might prevent a successful update of PRTG. Temporarily disable Windows Defender and other antivirus software if you have issues installing PRTG updates.
On PRTG hosted by Paessler instances, the update process is managed automatically, so you do not have to care about updating your PRTG.
If you run PRTG Network Monitor with version 19.2.50 or later, Packet Sniffer and Packet Sniffer (Custom) sensors use the Npcap library instead of the deprecated WinPcap library to monitor your traffic. With version 19.2.50, PRTG also installs a loopback adapter as part of this Npcap library.
We recommend that you manually uninstall the Npcap loopback adapter as it might result in unexpected behavior of additional services that run on the system where your PRTG remote probes are installed:
- Right-click the Windows start button and select Device Manager.
- Click the > arrow next to Network adapters to open a list of currently installed network adapters.
- Right-click Npcap Loopback Adapter and select Uninstall device.
- Click Uninstall to start the uninstall process.
As of PRTG Network Monitor 19.x.51, the Npcap loopback adapter is no longer automatically installed.
For more information, see the Knowledge Base: I have issues with additional services after updating to PRTG 19.2.50. What can I do?
If you run PRTG Network Monitor with version 16.1.22 or later, just install the latest version on top of the previous version. Your configuration is kept. PRTG automatically updates remote probes as well. If you have configured PRTG as a cluster, you only have to install an update on any node server (master or failover). PRTG automatically deploys the new version to the cluster.
We recommend that you use the Auto-Update of PRTG to install the latest version. Always have a proper backup of your monitoring data as well.
- PRTG 19.3.52: PRTG does not run on the outdated operating system Windows XP anymore. Make sure that you install PRTG on an officially supported operating system.
- PRTG 18.3.43: PRTG does not start and run on outdated Windows versions like Windows Server 2003 R2 anymore. Make sure that you install PRTG on an officially supported operating system.
- PRTG 17.3.34: Sensors that require the .NET framework need version .NET 4.5 or later. For details, see the Knowledge Base: Which .NET version does PRTG require?
- PRTG 16.3.26: The Mobile Web GUI was removed from PRTG.
- PRTG 16.2.25: Several sensors were removed from PRTG.
As of version 16.1.22, PRTG is signed with renewed certificates. To be able to seamlessly update to version 16.1.22 or later, an intermediate update is required for the PRTG core server and all probes if you currently run a PRTG version previous to 184.108.40.2061/1692. If you auto-update from previous versions (lower than 220.127.116.111/1692), PRTG automatically installs this intermediate version first. You have to perform an additional auto-update to install the latest version. PRTG notifies you with a ticket about this approach. Your configuration is kept.
We recommend that you use the auto-update to install the latest PRTG version. If you update manually with an installer downloaded from the Paessler online shop, the intermediate update is only necessary if you currently run a PRTG version previous to 18.104.22.1681/1692 with one or more remote probes or in a cluster setup. If you do not perform this intermediate update, you have to update your remote probes and cluster nodes manually. Contact our technical support team to get the installer for this version if you do not use the auto-update.
- As of PRTG 14, Internet Explorer 9 is no longer officially supported for access to the PRTG web interface.
- Also as of PRTG 14, PRTG core and probes no longer officially support Windows XP and Windows Server 2003 (including SP1 and SP2).
- As of PRTG 15, Internet Explorer 10 is no longer officially supported for access to the PRTG web interface.
We removed several sensors from PRTG with version 16.2.25. Sensors of these types that you still use in your PRTG installation stop monitoring and show a Down status as soon as you update to 16.2.25 or later. Most of the affected sensors were deprecated in PRTG version 16.2.23 or before. You receive tickets from PRTG that inform you if your PRTG setup is affected.
The sensors concerned were used by very few PRTG users and/or created substantial load for both our technical support and development team. We believe that the majority of PRTG users prefers that we focus on features that many customers use every day rather than spending our precious energy on niche issues. We want to keep PRTG as easy to use as possible.
For a list of all discontinued sensors, possible alternatives, and more details about this approach, see the Knowledge Base: Which sensor types will you remove from PRTG and what are the alternatives?
As of PRTG version 13.2.3, the website folder of the PRTG program directory is not used anymore. This means that if you update from a PRTG version older than 13.2.3 to the current version, all existing web interface customizations are disabled and you have to revise them. You may find a way for a similar customization that you can add to the files in the current webroot folder that contains the web interface files now.
For details, see the Knowledge Base: What about my web interface customizations as of PRTG 13.2.3?
We strongly recommend that you perform a clean install of the latest PRTG version instead of updating from an existing PRTG 9 or 12!
If you use PRTG 9 or 12 now, your configuration is kept when installing the current PRTG version in Standalone Mode or when installing a Master Node. There are only a few things you should consider.
We recommend that you always have a proper backup of your monitoring data.
- Intermediate versions: You have to install two intermediate versions before you can update to the latest version.
- If you currently run PRTG version 22.214.171.12464/3165 or lower, install the intermediate version 126.96.36.19907 before you proceed.
- If you have installed version 188.8.131.5207, install the intermediate version 184.108.40.2061/1692 before you proceed. Afterward, you can seamlessly update to the latest PRTG version. For details about this intermediate update, see section Update from PRTG Network Monitor 13.1.1 through 16.1.21.
- We recommend that you use the Auto-Update feature. In this case PRTG automatically installs the intermediate versions. Run the auto-update three times if you come from a version previous to 220.127.116.1107, run it twice if you come from a version previous to 18.104.22.1681/1692. If you do not use the auto-update, contact our technical support team to get the installers for these intermediate versions.
- Discontinued sensors: Existing instances of the following sensors stop working as of PRTG V12 and must be replaced with their successor sensors.
- VMware Host Server (SOAP)
- VMware Virtual Machine (SOAP)
- Xen Virtual Machine
If your configuration contains these sensors, they stop monitoring after updating to the current version. We recommend that you pause them to keep their data. To continue monitoring, add the sensors anew (for example, using the auto-discovery).
- Install .NET 4.0: We strongly recommend that you install .NET 4.0 on systems that run the core server (and the remote probes, if you use those). Otherwise the following features do not work: VMware auto-discovery and monitoring, Citrix XenServer auto-discovery and monitoring, SIP Options Ping sensor, Windows Last Update sensor (deprecated as of PRTG 16.x.23).
- Changed Geo Maps provider: When you update to the current PRTG version, the provider for geographical maps automatically switches from Google Maps to MapQuest (using Open Street Map data).
- Windows 2000 not supported: As of PRTG 7 we do not officially support Windows 2000 systems anymore. This means that PRTG cannot be installed on systems running Windows 2000, and you cannot officially monitor Windows 2000 systems (for example, via WMI). However, if you were able to successfully monitor your Windows 2000 systems with PRTG 9, this might actually not be possible anymore with the current PRTG version.
We recommend that you have a look at the Detailed System Requirements before updating to the current version. Officially supported operating systems, browsers, and other requirements may have changed since version 9.
We strongly recommend that you perform a clean install of the latest PRTG version instead of updating from an existing PRTG 7 or 8!
If you are using PRTG 7 or 8 now, you have to update PRTG to intermediate versions first to ensure all data is transferred correctly. You cannot update to PRTG 15 or later directly from PRTG 7 or 8!
- We recommend that you first update to the latest PRTG 8 version.
- From the latest PRTG 8 version, update to PRTG version 9.
- From PRTG 9, update to both intermediate versions 22.214.171.12407 and 126.96.36.1991/1692, then to the current PRTG version.
Contact our technical support to obtain download links for these PRTG versions. Always keep a proper backup of your configuration and monitoring data!
Updating from PRTG 7 or 8 to Current PRTG Version
- Packet Sniffer (Content) sensors are not supported anymore. Existing sensors of this type automatically switch to Packet Sniffer (Header) sensors after the update. As a benefit, you can now also sniff IPv6 traffic.
- Internet Explorer 8 is no longer supported for access to the PRTG web interface.
- You may experience a slow Enterprise Console (deprecated; former 'Windows GUI') because different reasons.
- When installing a failover node on top of an existing standalone PRTG 7, 8, 9, 12, or 13+ installation, the configuration cannot be kept and is written to a backup folder. Afterward, the new cluster configuration is received from the master node of the cluster. As all nodes work with the same configuration, a failover node's old configuration and monitoring data can no longer be used. If you want to keep a configuration of PRTG 7, install the master node on top of the old installation and use other servers for the failover node installations.
- Since PRTG 9, SNMP sensors use the IPv4 Outgoing IP set for the probe service (this setting was formerly ignored by those sensors, using the auto setting instead). If you experience failing sensors, check the setting in the probe settings.
- If you (manually) configured the PRTG probe or PRTG core server service to run under a different Windows user account (for example, for successful internet access through an ISA server firewall), apply the respective Windows user account for the PRTG probe service and/or PRTG core server service anew after installing the current PRTG version.
- For system requirements for the PRTG core server and probes, see our latest Detailed System Requirements.
- If you use the default data path in your PRTG setup, it is changed automatically. Up to version 8, all data was stored in a subfolder reflecting a PRTG version number (v7 or v8). As of version 9, this subfolder is omitted, and data is stored directly in %ALLUSERSPROFILE%\Application data\Paessler\PRTG Network Monitor. During setup, all data is moved to the new directory. If you use a custom data path, it is not changed.
- Up to version 8, all data in the registry was stored in a subkey reflecting a PRTG version number (v7 or v8). As of version 9, this subkey is omitted and registry data is stored directly under the key HKEY_LOCAL_MACHINE\SOFTWARE\Paessler\PRTG Network Monitor (on 32-bit systems), respectively HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Paessler\PRTG Network Monitor (on 64-bit systems). During setup, all existing registry values are moved to the new key.
We strongly recommend that you see the Detailed System Requirements before updating to the current version. Officially supported operating systems, browsers, and other requirements may have changed since version 8.
Updating from PRTG 7 to Current PRTG Version
- Regarding custom sensors, the interpretation of returned values is handled more strictly as of PRTG 8. If you use custom sensors with PRTG 7, these may not work with the current PRTG version if they do not fully apply to the API definition.
Update from Older PRTG Products
For all other predecessor products, a direct data import into the current version is not possible.
If you have been using IPCheck 5 or PRTG Traffic Grapher 6, perform a clean installation of PRTG Network Monitor and set up your configuration anew. Using the Auto-Discovery in PRTG is the easiest way to quickly configure monitoring of your entire network.
For more information, see section Quick Start Guide.
Knowledge Base: How do I back up all data and configuration of my PRTG installation?
Knowledge Base: What about my web interface customizations as of PRTG 13.2.3?
Knowledge Base: How and where does PRTG store its data?
Knowledge Base: Updating from Version 7, 8, 9 or 12? Read this important message!
Knowledge Base: Can I update from PRTG Traffic Grapher or IP Check 5 to the current PRTG version?
Knowledge Base: What does error code PE252 mean?
Knowledge Base: The signature of my PRTG server is not valid. What can I do?
Knowledge Base: Which sensor types will you remove from PRTG and what are the alternatives?
Knowledge Base: I have issues with additional services after updating to PRTG 19.2.50. What can I do?
Knowledge Base: Why do I get an error message when trying to restart Windows Server 2019 after a PRTG update?