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Wireshark is not finding any ethernet port

asked 2019-02-12 12:59:44 +0000

Burch gravatar image

Hi Everyone,

from the first time i installed Wireshark, it was not able to find the ethernet port. I tried to install also the portable version or an older versrion but without effects.

I am working on Windows 10 Pro 64-bit.

Any suggestion?

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Please post the contents of the dialog obtained from the the menu Help -> About Wireshark -> Wireshark tab. The text can be highlighted with a mouse and copied to the clipboard with Ctrl + C.

grahamb gravatar imagegrahamb ( 2019-02-12 13:18:18 +0000 )edit
Version 2.6.6 (v2.6.6-0-gdf942cd8)

Copyright 1998-2019 Gerald Combs <[email protected]> and contributors. License GPLv2+: GNU GPL version 2 or later <http: www.gnu.org="" licenses="" old-licenses="" gpl-2.0.html=""> This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Compiled (64-bit) with Qt 5.9.7, with WinPcap (4_1_3), with GLib 2.42.0, with zlib 1.2.11, with SMI 0.4.8, with c-ares 1.14.0, with Lua 5.2.4, with GnuTLS 3.4.11, with Gcrypt 1.7.6, with MIT Kerberos, with MaxMind DB resolver, with nghttp2 1.14.0, with LZ4, with Snappy, with libxml2 2.9.4, with QtMultimedia, with AirPcap, with SBC, with SpanDSP, with bcg729.

Running on 64-bit Windows 10, build 17134, with Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz ...
(more)
Burch gravatar imageBurch ( 2019-02-12 13:50:22 +0000 )edit

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answered 2019-02-12 15:46:09 +0000

cmaynard gravatar image

The problem is this part:

Running on ... without WinPcap, ...

If you want to be able to capture packets on Windows, you either need to install WinPcap or since WinPcap is no longer supported, it is now recommended to install npcap instead.

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When i try to install WinPcap or also npcap, i got this error message from the installer:

"Error opening file for writing: C:\WINDOWS\system32\drivers\npf.sys"

Burch gravatar imageBurch ( 2019-02-13 07:35:48 +0000 )edit

Are you attempting to install it as an administrator (or as a user with administrative privileges) or just as a normal non privileged user?

cmaynard gravatar imagecmaynard ( 2019-02-13 12:48:26 +0000 )edit

Tried both ways. Not working also as administrator.

Burch gravatar imageBurch ( 2019-02-13 12:50:50 +0000 )edit

Hmm. This has come up before and it does seem related to permissions. Can you check all permissions as suggested on this old thread: https://www.winpcap.org/pipermail/win...

cmaynard gravatar imagecmaynard ( 2019-02-13 14:20:42 +0000 )edit

I checked all permissions needed (writing/creation) for this folder and with my user. Everything is enabled so i should be allowed to make changes in it...

I would like to post a screenshot about it but i am not allowed yet. Maybe could i use an external website?

Burch gravatar imageBurch ( 2019-02-14 08:09:04 +0000 )edit

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Asked: 2019-02-12 12:59:44 +0000

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Last updated: Feb 12