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windows update sensor



hello , i have a server that we chage the ip address , we had a wmi update sensor , and after the chage the sensor stop working and show an error massage - No such host is known . what can i do to fix it? and why is that happaned ?

prtg update wmi

Created on Dec 21, 2021 7:00:58 AM

1 Reply



If you copy your DNS entry out of the device in PRTG e.g. myserver.dns.local, logon to your probe server via RDP then issue the command: ping myserver.dns.local

if it still says the old IP address, thats why.


As for what you can do to correct it, one of these will probably fix it:

1 you could try RDPing onto the server, run a command prompt and issue the command:

ipconfig /registerdns

on the server itself (then wait a while until local DNS expires on the probe).


2 Logon to your domain controller, open DNS, find the entry in DNS and update the IP address (then wait a while until local DNS expires on the probe).

I've have made some assumptions here, but hopefully this will get you on the right path.

Created on Dec 23, 2021 12:49:47 AM

Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.