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  1. Qt
  2. QTBUG-46516

Windows: WebEngine connections huge delays

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Details

    • Bug
    • Resolution: Duplicate
    • P2: Important
    • None
    • 5.4.2
    • WebEngine
    • None
    • Windows 7 (32bit). Vmware or real PC. NIC

    Description

      Build simple program that used websockets to connect to my websocketserver. Server on address 127.0.0.1

      I use WebEngine for viewing bug and WebView for control.
      When network fully configured - setted real default gateway (and maybe something else) - all ok.
      When network not properly configured - resetted default gateway - i see huge delays:

      WebView: fast connection (fractions of seconds)

      WebEngine: 5 second on every connect on test program. (up to 25 second on real application).

      Chrome (load html-page with javascript directly) - fast connection (fractions of seconds).

      Firewall are disabled.
      Netcat fast connecting to server.

      Changing server address from 127.0.1 for real network address not resolve problem.

      When shutdown network interface - I see fast connect.

      Its a really big problem because I don't see any doc for additional cooking
      WebEngine for work instead official doc. where not described this situation.

      Users cannot wait 5-25 seconds for establishing connection to localhost.

      Attachments

        1. web.zip
          5 kB
        2. TestConnect.zip
          6 kB
        3. slow connect from webengine.png
          slow connect from webengine.png
          24 kB
        4. fast connect from webview.png
          fast connect from webview.png
          31 kB
        5. chrome.png
          chrome.png
          35 kB
        6. bad network2.png
          bad network2.png
          42 kB
        7. bad network.png
          bad network.png
          147 kB

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              kkohne Kai Köhne
              Yaroslav Yaroslav
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              Dates

                Created:
                Updated:
                Resolved:

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