I am having the same problem. I asked them to open the 2 ports or to have 2 pools against the same IP for the 2 ports. The problem I am facing is that the network team asks for Probing URL (that they use to check if server is alive) that always returns http/200 and I just cannot get anything out of Qlik Sense. Especially for port 4244. How did you get past this problem?