After installing Security Update For Exchange Server 2016 CU19 (KB5001779), our Exchange 2016 Powershell sensors are giving the following error:

"The sensor was able to connect to the device using Remote PowerShell but could not retrieve access to Remote Exchange Management Shell. Ensure that remote management is enabled on the Exchange Server and the user has sufficient rights. See https://helpdesk.paessler.com/en/support/solutions/articles/76000063078 for details. The syntax is not supported by this runspace. This can occur if the runspace is in no-language mode."

Article Comments

Hey there,

Unfortunately, several customers have reported exactly this behavior after the Exchange update. In software development, it is unfortunately sometimes the case that one manufacturer (in this case Microsoft) changes something and others then have to follow suit.

We have to analyze the problem and I hope that my colleagues from development can offer a hotfix soon. This also means, that unfortunately, I can't offer you a quick solution at the moment and ask for your patience.

Best,
Sven Roggenhofer [Paessler Technical Support]


Apr, 2021 - Permalink

Hi, we have currently the same issue after the latest exchange patch


Apr, 2021 - Permalink

Please note this.


Apr, 2021 - Permalink

Still doesn't work with elevated rights. Apparently Microsoft has changed how remote calls on Exchange are done, so the PRTG sensors are going to need to change.

https://techcommunity.microsoft.com/t5/exchange-team-blog/released-april-2021-exchange-server-security-updates/ba-p/2254617


Apr, 2021 - Permalink

Hi, there's going to be an updated PRTG version with the fix which should be release this week.


Apr, 2021 - Permalink

Updated to 21.2.67.1562 this morning and the sensors in question are now working again. Thanks!


Apr, 2021 - Permalink