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IP address is configured for Core Probe connections but seems to be unavailable




{{{Caution! Your monitoring is interrupted because the core server cannot accept incoming probe connections

The following IP address is configured for Core Probe connections, but seems to be unavailable: x.x.x.x (available: y.y.y.y). Probes configured to connect to this address are not able to do this! }}}

x.x.x.x = old IP
y.y.y.y = new IP

PRTG Server was moved to a new IP. Keeps alerting saying the old IP is still configured for core probe connections. Old IP not listed in the configuration.

Setup > System Administration > Core & Probes = Specify IPs with only new IP and loopback defined Setup > PRTG Status > System Settings only lists the new IP and loopback

Any idea why PRTG continues to generate this alert?

change connections core ip probe prtg

Created on Dec 17, 2019 10:23:30 PM

1 Reply




Please check the following: Open the PRTG Administration Tool on the Core Server tab and make sure that the settings for Probe Connection Management are correct. If so, please restart the Core Server once.

If the IP changed, please also connect to each remote probe system, open the PRTG Administration Tool and enter the new IP address of the target server.

Kind Regards,
Timo Dambach
Paessler Tech Support

Created on Dec 18, 2019 12:05:23 PM by  Timo Dambach [Paessler Support]

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.