SWOES 2026.1.1 version upgradation

Nikhs

Hi Everyone,

We are planning on upgrading to version 2026.1.1. Currently we are on 2025.2.1.

If anyone has upgraded to this version, have you experienced any bugs in 2026.1.1 and how is the overall working of this version. Is there anything particular that we need to look out for or be warned about.

i_like_eggs

hey,

The first one is the node status behaviour around polling failures. From 2026.1 onwards, SolarWinds now exposes polling issues more directly. So if ICMP is working but SNMP, WMI or WinRM polling is failing, the node can show as Critical or Misconfigured with a “Polling is failing” message. That is useful visibility, but it can catch out environments that have broad “Node Status is Critical” type alerts, or existing credential/polling issues that were previously hidden.
Node status Critical with “polling is failing” message after upgrade to SolarWinds Platform 2026.1

The second one is around scalability engine communication. If you have Additional Polling Engines, Additional Web Servers or HA servers, check the port requirements carefully. TCP 17734 needs to be open inbound on the Main Polling Engine from those servers. If that is missed, APEs/AWS/HA components can become unavailable or services may stop/restart.

SolarWinds Platform 2026.1 release notes