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How can I disable password auto-complete on the login page?



I would like to turn off the automatic completion of usernames and passwords on the login page of PRTG. Can I disable this auto-complete functionality of the web browser for both input fields? How can I apply this security enhancement?

login login-name password prtg reghack registry security

Created on Jun 11, 2014 12:19:17 PM by  Gerald Schoch [Paessler Support]

5 Replies

Accepted Answer



This article applies to PRTG Network Monitor 14.x.11 or later

Disabling Auto-Complete for PRTG Login Name and Password

PRTG Network Monitor provides the option to disable the automatic completion of Login Name and Password by your web browser on PRTG’s login page. You can set up this security enhancement with a registry key option to turn off automatic filling of the login form.

If you apply this registry hack, the result will be the following:

  • The browser will not ask again if the login credentials should be saved.
  • The browser will stop filling out the login form also if the option to save the credentials has been set before.
  • The browser will not suggest usernames anymore while entering the login name.

Note: This reghack does not work with Firefox browsers.

Disabled Auto-Complete in Chrome
Disabled Automatic Filling of Login Form in Google Chrome

Steps to Go

Caution: Please back up your system before manipulating the Windows registry!

  1. Open the registry editor and navigate to the following subkey:
    1. On a 64-bit Windows system, navigate to HKEY_LOCAL_MACHINE\Software\Wow6432Node\Paessler\PRTG Network Monitor\Server\Webserver
    2. On a 32-bit Windows version, navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Paessler\PRTG Network Monitor\Server\Webserver
  2. Create a new DWORD:
    1. In the current subkey, right-click to open the context menu.
    2. Choose New | DWORD Value.
    3. Name the new value LoginAutoCompleteOff
  3. Set the value of LoginAutoCompleteOff to 1:
    1. Right-click on LoginAutoCompleteOff
    2. Select Modify….
    3. In the value field, enter 1.
    4. Confirm with Ok.
  4. Restart the PRTG core server to activate the settings.

With this registry key option, your browser will no longer automatically fill PRTG’s login form.

Setting the DWORD value to 0 will enable auto-complete on the login page again.

Created on Jun 11, 2014 12:37:13 PM by  Gerald Schoch [Paessler Support]

Last change on Aug 14, 2014 4:58:33 PM by  Gerald Schoch [Paessler Support]



Hello PRTG Team, is this solution still valid for version

Created on Feb 25, 2020 5:58:40 PM



Hi Sabine,
Yes, this information is still valid.

Created on Feb 26, 2020 8:30:14 AM by  Moritz Heller [Paessler Support]



Hello, I am trying to use this solution for version, but does not work.

Created on Feb 25, 2023 6:37:05 PM



Hi there,

Did you checked different browsers or a privat tab of your browser?

Thank you!

Created on Feb 28, 2023 2:59:28 PM by  Moritz Heller [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.