What the error message means The error message Connection could not be established (code: PE015) means that the RPC server of the targeted system could somehow not be properly accessed or queried by PRTG. This error message is most likely ca...

This article applies as of PRTG 22 What are troubleshooting methods to fix when HTTP sensors in PRTG show errors? HTTP sensors: Overview of possible errors and suggestions for troubleshooting Error typesError message(s)Troubleshooting...

This article applies as of PRTG 22 All EXE/Script sensors that have the same Mutex (Mutual Exclusion) name are executed serially (not simultaneously). This is useful if you use a lot of sensors and want to avoid high resource usage that i...

This article applies as of PRTG 25 SMTP Notification Relays with Azure Communication Services  Microsoft is retiring Basic Authentication for Client Submission, or SMTP AUTH, for Exchange Online as means to increase security.  This change affe...

This article applies as of PRTG 25 List of deprecated sensors and their available successors or alternatives Deprecated sensorDeprecated in PRTG versionSuccessor or alternative Active Directory Login N/A N/A Active Directory Replication Er...

This article applies as of PRTG 25 Monitoring AWS Linux instances with SSH sensors Follow the steps below to monitor your AWS Linux instances using SSH sensors. Make sure that your Linux instances have a security group configured that allows...

This article applies as of PRTG 25 Script v2 sensor The Script v2 sensor is custom sensor in PRTG that monitors a system using a Python script. It enables users to create script sensors, which are then used as a Command-Line Interface (CLI) pr...