Comment 6 for bug 1131788

Looks like a bug in the M2Crypto module which when installed overrides the default python urllib implementation:

https://bugzilla.osafoundation.org/show_bug.cgi?id=2341

Try commenting out line 2605 in XiboClient.py so it reads:

        try:
            # socket.setdefaulttimeout(self.socketTimeout)
            log.log(2,"info",_("Set socket timeout to: ") + str(self.socketTimeout))
        except:
            log.log(0,"warning",_("Unable to set socket timeout. Using system default"))