Robot communication Issue with RHEL 7.x

Products

• DX Infrastructure Management
• NIMSOFT PROBES

Issue/Introduction

Client had a RHEL 7.x and SUSE 12 SP2 connected to a secondary hub
that was using a tunnel to connect back to the primary.
From the primary trying to open up IM or AC2 to the robots you would get a communication error.

 

Cause

Client Linux admin had enabled:
tcp_tw_recycle
and
tcp_tw_reuse

by setting these values to 1 in the OS configuration for IPV4 TCP files

Environment

UIM 8.51+
Robot 7.93+
RHEL 7.x
SUSE 12 SP2

Resolution

When the client changed these system setting back to 0 from 1
and restarted the machine the communication to the robots would then work.
 

Additional Information

https://access.redhat.com/solutions/24154