If you have an older version of Wireshark on your Qlik server, remove both Wireshark and WinPcap, and then install the latest Wireshark version.

But older versions included the WinPcap library, which does not support loopback capture. This package is included with the later versions of Wireshark.To capture local loopback traffic, Wireshark needs to use the npcap packet capture library.After the traffic has been captured, stop and save the Wireshark capture. At the initial screen, select and double-click the Adapter for loopback traffic capture adapter.To start capturing traffic, run Wireshark.Accept the default settings and install npcap. During the installation, a dialog displays where you can choose to install npcap.You also have a capture filter field, so you only capture the network traffic you want to see. Download and install the latest version of Wireshark from. When you open Wireshark, you see a screen that shows you a list of all of the network connections you can monitor.On the system where you want to capture loopback traffic, do the following: For information about how to use Microsoft Message Analyzer to capture SQL Server traffic for analysis, see Data Collection - How to use Microsoft Message Analyzer to capture SQL Server traffic for analysis. Instead, use the Microsoft Message Analyzer. IMPORTANT: If you are trying to capture traffic to and from an SQL Server, do not use Wireshark, because it does not readily display such traffic.

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