Multiple robots show hub communication errors

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Five robots are showing hub communication error but the ports are open and can do telnet from both end. Checked locally and did not find any windows firewall on and no symantec issues.

Controller: ----- 
Controller: Controller on hostxxx port 48000 started
Controller: hub CABCXXXXXX(172.1x.xx.xx) NO CONTACT (communication error)

Environment

Release : 9.2.0

Component : UIM - ROBOT

Cause

- IDS/IPS

Resolution

IDS/IPS software/firewall interference.