Version:            (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

When I access my fritzbox via https i.e. https://fritzbox.local konqueror shows a timeout error:

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The requested operation could not be completed
Timeout Error
Details of the Request:
URL: https://fritzbox.local/
Protocol: https
Date and Time: Sunday, 14. June 2009 14:42
Additional Information: fritzbox.local
Description:
Although contact was made with the server, a response was not received within the amount of time allocated for the request as follows:
Timeout for establishing a connection: 20 seconds
Timeout for receiving a response: 600 seconds
Timeout for accessing proxy servers: 10 seconds
Please note that you can alter these timeout settings in the KDE Control Center, by selecting Network -> Preferences.
Possible Causes:
There may have been a problem at some point along the network path between the server and this computer.
The server was too busy responding to other requests to respond.
Possible Solutions:
Try again, either now or at a later time.
Contact the administrator of the server for further assistance.
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With http the same works well with konqueror. I checked with firefox 3 and it also works as expected.