NetworkError.UnknownNetworkError causes 20 second crash

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My program crashes for 20 seconds, 20 seconds after I make a request with QtNetworkAccessManager. It only happens with https URLs, and does not happen on my linux machine. I have attached an example in python using pyside.

To test run these in two different terminals.
python net_acc_crash.py
tail -f log_file.txt

Versions:
Windows 7.
Python 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)] on win 32
Qt version: 4.7.4

Any help or suggestions appreciated.