QNetworkAccessManager and VPN

[HojjatJafary]

Hi,
In my application I send simple REST requests using QNetworkAccessManager.
If I connected to the Internet through VPN in windows machine everything works great but when I disconnect from VPN and connect using regular internet connection the QNetworkAccessManager does not reconnect to the server and I get "Network access is disabled." error message.
How should I fix this?

[koahnig]

@HojjatJafary

Is the application restarted after you have disconnected from VPN and done a standard internet connection?

[HojjatJafary]

No, I don't want my application restart because of the network state change.

[SGaist]

Hi,

Is that server accessible outside of the VPN ?
If so, is it using the exact same address ?

[koahnig]

@HojjatJafary

Gut feeling is that you have to use a new QNetworkAccessManager.

[HojjatJafary]

@SGaist Yes, the server is accessible from both network conditions.
It is a very simple Http server with a valid public IP.

[HojjatJafary]

@koahnig I think the QNetworkAccessManager has roaming capability that can adapt connection based on network conditions.

[SGaist]

Roaming and killing a connection is not exactly the same.

Creating a new QNAM is worth a try though.

By the way, what version of Qt are you using ?
On what OS ?

[HojjatJafary]

@SGaist Windows 7 and Qt 5.12.3

[SGaist]

You should also test with a more recent version of Qt.

By the way, how exactly are you switching from VPN to normal connection ?

[HojjatJafary]

@SGaist Through a TAP Windows Adapter V9.

[SGaist]

Can you explain that with more details.

[braydenmayne]

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