After npcap-1.30 is installed on Windows 10, the list of Wireshark network cards is as shown in the picture.
Many additional network cards are added, and the link layer headers of all network cards are changed to loopback. As a result, no matter which network card is selected, can only capture the loopback packets。
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The sparklines (the traffic graph between the adapter name and the adapter link-layer type) look suspiciously similar; could Npcap be capturing on the exact same device, whatever that might be, for all of those adapters?
This appears to be caused by a misplaced parenthesis in the comparison of an adapter name with that of the legacy Npcap Loopback Adapter retrieved from the Registry. This is resulting in every comparison being true. To fix the issue, reinstall Npcap and un-check the installation option box for "Legacy Loopback support." We will issue a bugfix release soon.