OpenVPN / OpenVPN/openvpn

Short no net period on a VPN connection

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Dominant language
C
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Forks
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Description

Describe the bug
It looks like with the 2.6.4 version there is a short period of time when there is no net after the connection is made. What can be seen from the ping log.

To Reproduce

  1. Get OpenVPN 2.6.4 installation file from Community Downloads | OpenVPN, install
  2. Run ping 1.1.1.1 -t in the separate command line window.
  3. Run C:\Program Files\OpenVPN\bin>openvpn.exe --config "{configFile}.ovpn"

Expected behavior
Stable connection without short no net.
success

Actual result
Short period of time when there is no net after the connection is made.
fail

Version information (please complete the following information):

  • OS: Windows 11 Pro
  • OpenVPN version: 2.6.4

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the report on Windows 11 with OpenVPN 2.6.4, the supplied .ovpn configuration, openvpn.exe, and a continuous ping to 1.1.1.1; compare the ping behavior with the attached success and failure screenshots. Done means the VPN connection becomes stable without a short period of lost network access after connection.

Written by the indexing model from the issue text.

Assessment

Tech stack
c
Domain
networking
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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