hi,
it seems the nokia phone do know what its encryption status…
blog.taddong.com/2011/02/does-your-phone-warn-you-when-it-is-not.html
an open lock means there is no encryption.
so either the phone is not behaving correctly
… or your network is not behaving correctly
… or you misread the Ciphering messages ?
could you copy and paste the content of the ciphering complete message here please ?
regards