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Home > Success Center > Network Performance Monitor (NPM) > Experiencing intermittent group membership loss in SolarWinds NPM

Experiencing intermittent group membership loss in SolarWinds NPM

Updated: October 16, 2017


This article provides a workaround to an issue where groups using a dynamic query intermittently drop and then re-add members.


  • NPM 11.5.3 and higher



This issue is caused by delays in ICMP and SNMP packets. 



  1. Log in to the Orion Web Console as an Administrator.
  2. Click Settings - All Settings - Polling Settings.
  3. Scroll down to the NETWORK section.
  4. Change ICMP TIMEOUT value to 4500.
  5. Change ICMP DATA value to SolarWinds Status Query SolarWinds Status Query.
  6. Change SNMP TIMEOUT value to 4500.


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