Network Management

SolarWinds Platform Web Console is inaccessible with "Server Error in '/' Application" message due to missing SendTrustedIssuerList registry key

Users may encounter a "Server Error in '/' Application" with a message stating "No connection could be made because the target machine actively refused it IP:17732" when accessing the SolarWinds Platform Web Console.

First published date

11/6/2025 8:48 AM

Last published date

11/6/2025 5:16 PM

Overview

When attempting to access the SolarWinds Platform Web Console, an error message is displayed:

Server Error in '/' Application. No connection could be made because the target machine actively refused it IP:17732

  • Upon investigation, the registry path:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL

    is missing the SendTrustedIssuerList registry key.

Product section

Network Performance Monitor

Cause

The SendTrustedIssuerList registry key is missing from the following path:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL
This key controls whether the trusted issuer list is sent during SSL negotiations. Its absence can cause connection refusals in the Certificate Management Service. 

Resolution

  1. Press Win + R, type regedit, and press Enter
  2. Navigate to: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL
    • Right-click the SCHANNEL key 
    •  choose New 
      • name it SendTrustedIssuerList 
    •  DWORD (32-bit) Value.
    • Double-click it and set the Value data: 
      • 1 = Send trusted issuer list (default behavior)
      • 0 = Do not send trusted issuer list
    • Click OK and close Registry Editor.
    • Reboot the server (or restart the SCHANNEL-related services) for the change to take effect.