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  1. Qt
  2. QTBUG-60592

Switching network type causes a preconnected QNetworkAccessManager to go into the NotAccessible state

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Not Evaluated
    • Resolution: Duplicate
    • Affects Version/s: 5.7.1
    • Fix Version/s: None
    • Component/s: Network
    • Labels:
      None
    • Environment:
      iPhone 6SE (iOS 10.2.1)
      iPhone 5S (iOS 8.3)
      4G carrier: T-Mobile

      Description

      When the phone is connected to wi-fi and 4g, and the user disable the wi-fi the QNetworkManager instance will go into the NotAccessible state, if it was previously connected to an host (connectToHost/connectToHostEncrypted).

      Steps:
      1) enable both WiFi and 4G (it's important that both are enabled before opening the app);
      2) open the app;
      3) disable the wifi;
      4) the QNetworkAccessManager goes into NotAccessible state.

      It might be necessary to try 3-4 times, as it doesn't happens always.

      Also, I'm not sure if it's related, but just before switching state, I see the following log message:

      QObject::disconnect: Unexpected null parameter
      

      It appears to happen only on iOS, I tried on a Samsung Galaxy S6 (Android 6.0.1) and I couldn't reproduce it. Also it doesn't happen if the manager wasn't connected to an host.

      Attached there is a test application to reproduce the issue.

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              Assignee:
              tpochep Timur Pocheptsov
              Reporter:
              paskol Pasquale Damiani
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                Dates

                Created:
                Updated:
                Resolved:

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