Submit a ticketCall us

Don’t fall victim to a ransomware attack
Backups are helpful, but sometimes that’s not enough to protect your business against ransomware. At our live webcast we will discuss how to protect against ransomware attacks with SolarWinds® Patch Manager and how to leverage log data to detect ransomware. Register now for our live webcast.

Home > Success Center > Network Performance Monitor (NPM) > Duplicate port causing website 500 error

Duplicate port causing website 500 error

Table of contents
Created by Daniel Phillipps, last modified by MindTouch on Jun 23, 2016

Views: 9 Votes: 0 Revisions: 4


This article describes the issue when duplicate ports in use causes website to fail to load successfully. 


NPM version 11.5.2


  1. Open the IIS Manager.
  2. Check the default website and the Solarwinds website.
  3. Verify they are not using the same port.
  4. If they see both websites are using the same port in bindings, delete the default website.
  5. Re-assign the port to the Solarwinds website.
  6. Reboot the server to verify if it runs successfully.


Last modified
22:12, 22 Jun 2016