I apologize for the late response.
Because My wife and I am going to Singapore to visit for our 1st wedding anniversary.(http://www.3dpchip.com/xe/3384)

Try to use the driver of follow link.

http://support.toshiba.ca/support/Download/files_downloads/psle8c/TOSHIBA-Software-Modem-SM2177ALD04.zip

And, let me know the results.