How to configure Network Loadbalancer (NLB) with Qlik Sense Enterprise

[Sonja_Bauernfeind]

Qlik Sense supports network load balancers (NLB) for distributing user sessions over multiple Qlik Sense Proxies. 

A successful load balancing setup requires that the NLB complies with Qlik Sense basic requirements for communication;

• Open ports
• Support for WebSocket protocol
• Sticky/persistent sessions
• Session timeout 

Qlik Sense does deem specific networks load balancers supported or not supported, but requires that load balancers behavior comply with the Qlik Sense traffic requirements. 
See Network Load Balancer (NLB) With Qlik Sense Enterprise April 2018 and later for more details. 

NLBs are not provided by Qlik, therefore NLB specific configuration is not provided by Qlik Support.

Consider the following options to get NLB correctly configured;

• NLB vendor provided support channels
• NLB documentation  
• Configuration advise from other Qlik customers though Qlik Community
• NLB configuration though Qlik Consulting Services, see How to Contact the Consulting Team? for more details

Environments:

• Qlik Sense Enterprise on Windows , all versions