Submit a ticketCall us

Get a crash course on Network Monitoring delivered right to your inbox
This free 7-day email course provides a primer to the philosophy, theory, and fundamental concepts involved in IT monitoring. Lessons will explain not only how to perform various monitoring tasks, but why and when you should use them. Sign up now.

Home > Success Center > Network Configuration Manager (NCM) > Connected! Disconnect: Protocol error

Connected! Disconnect: Protocol error

Updated: August 16, 2016


This article provides brief information and a resolution to the following error when a scheduled job is executed on multiple devices:


Disconnect: Protocol error


NCM version 7.4.1


The issue is related to the specific devices and the amount of data devices presented during a login session. 


Reduce the number of simultaneous sessions:

  1. Log in to the Orion Web Console.
  2. Go to NCM Settings.
  3. Go to Configs Settings (Configs > Configs).
  4. Reduce number of Simultaneous Downloads/Uploads (you may need to experiment with the final figure).
  5. Click on Submit.
  6. Attempt job execution.


Last modified
18:06, 15 Aug 2016