This article applies to PRTG Network Monitor 9 or later


My local probe shows a "disconnected" status. It does not recover. What can I do?

Change Mac Scan Setting

By default, on services startup, PRTG tries to detect all available network adapters on the system running a probe (this includes, for example, the PRTG core server).

On few systems, this might lead to an exception so that the probe cannot fully connect to the core server. In this case, please try to disable the initial detection of available network cards.

Caution: Please backup your system before manipulating the Windows registry!

Step 1

  • On the system running the PRTG core server, open the registry editor.
  • For a 64-BitWindows system, go to 
    HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Paessler\PRTG Network Monitor\Probe\
  • For a 32-BitWindows system, go to
    HKEY_LOCAL_MACHINE\SOFTWARE\Paessler\PRTG Network Monitor\Probe\

Note: For PRTG 8 you might see the values in the additional sub-key V7 or V8.

Step 2

  • Add a new DWORD value with the name NoMacScan.
  • Set this to 1 to disable the initial search for network adapters.

Notes

  • The new setting is active after a restart of the core server Windows service (see PRTG Administration Tool in the manual).


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.