Navigation: Installing > TCP Ports TCP Ports If analyzing apps hosted in Qlik Sense Enterprise on Windows, QSDA must be able to access TCP ports on the Qlik Server(s). All Connection Types 80 -- Qlik Sense Proxy (HTTP) 443 -- Qlik Sense Proxy (HTTPS) 4242 -- Qlik Sense Repository Service (QRS) CERTIFICATE and QLIKLOGIN connections 4747 -- Qlik Sense Engine Service (QES). In a multi-node environment, be sure to open this port on all Engine nodes. If accessing the QSDA server via http://servername:5003 firewalls must allow inbound connections to port 5003. QSDA Pro version 3.5.4