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  1. Qt
  2. QTBUG-60949

Local HTTP requests fail when ethernet connection goes down

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Details

    • Bug
    • Resolution: Unresolved
    • P2: Important
    • None
    • 5.8.0, 5.9.0, 5.9.1, 5.10.0, 5.10.1, 5.11.0, 5.11.1, 5.11.2, 5.12.0, 5.12.1, 5.12.2, 5.12.3
    • Network: BearerManagement, Network: HTTP
    • None
    • * Arch Linux and Tumbleweed, using dnsmasq or NetworkManager and official Qt packages
      * I guess the issue affects all versions of Qt 5. I explicitly reproduced it with all Qt versions listed under "Affects Version/s".

    Description

      observation

      When establishing a "long polling" HTTP connection via QNetworkAccessManager to a local server (eg. a Syncthing instance under http://127.0.0.1:8080/) the connection is aborted when the ethernet connection goes down (eg. router is restarting). It is not possible to do any further requests, too.

      problem

      The local connection shouldn't be affected by connectivity changes of the ethernet (or any other) adapter.

      workaround

      thiago suggested removing the bearer plugins on IRC. Maybe it is also possible to use
      QPluginLoader::unload() to disable the plugins only in an application affected by this bug.

      It definitely helps to simply restart the application. When the ethernet connection is initially down, the bug doesn't occur.

      further notes

      The Qt WebKit module is also affected. However, I only tested only the ng version so far (tp5).

      Attachments

        Issue Links

          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-49751 [qt-iOS] network module stops functioning after network was disabled and then re-enabled

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
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          Activity

            People

              cnn Qt Core & Network
              martchus martchus
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              Dates

                Created:
                Updated:

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