Some Tencent Cloud machines have WinAgent, which comes with WinPcap. If you install a higher version of Wireshark (≥3.0, where the network card filter is not WinPcap but NPcap), you may encounter a situation where both Pcap versions (WinPcap and NPcap) coexist, causing Wireshark packet capture anomalies such as TCP retransmissions occurring within a 20-microsecond interval, as shown in the image below.
Although this does not directly impact business operations, it can affect packet capture analysis, causing inconvenience.
Preliminary Plan:
Tencent Cloud Related Issues
Error installing winpcap on some images with Tencent WinAgent.
Solution
Due to Tencent WinAgent including WinPcap, standalone installation of WinPcap is not possible.
[Tencent WinAgent Service]
C:\Program Files (x86)\WinAgent\
service name: winagent
display name: Tencent WinAgent
Version 4.1.3: The last official WinPcap release was 4.1.3
Winpcap 4.1.3 is compatible with win7/win8.1/win10/2016/2019/2022/2012R2/2008R2
Wireshark version 2.6.20 is recommended (the last Wireshark version with WinPcap; newer versions are with NPcap)
Wireshark full version download link: https://2.na.dl.wireshark.org/win64/all-versions/
Search for version 2.6 and find the latest, which is currently 2.6.20
Run these 3 command lines in the command prompt as an administrator before installing WinPcap
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