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Home > Success Center > Network Performance Monitor (NPM) > NPM - Knowledgebase Articles > The Additional web server gives errors when editing Views after SRM installation

The Additional web server gives errors when editing Views after SRM installation

Created by Maciej Klasa, last modified by Rodim Suarez_ret on Mar 06, 2017

Views: 194 Votes: 0 Revisions: 4


Installed SRM on the main poller and an SRM additional website on the additional web server. When editing a View (either by clicking "Customize Page" or by editing view in "Manage Views"),  you get the following error message:

Object reference not set to an instance of an object


  • SRM 6.2
  • NPM 11.5.3
  • Additional eeb server


Incorrect entries in the Subscriptions and Websites tables.


  1. Stop all services on all polling engines and web servers.
  2. Clear subscriptions - Clear Information Service Subscriptions.
  3. Remove all entries from the Websites table.
  4. Rerun the Configuration Wizard on the main pollers and on the additional web server.
  5. Update the ReportJobs table with new website ID (report schedules will launch on main poller).
  6. Restarted all additional polling engines.


Last modified