If you've forgotten the W2 Portal password there is a Forgotten your password link available from the Portal login page that will send you out a new reset password link. 

Please note that this Email can sometimes be miss-identified as Spam and may appear in your Email Junk folder. If you haven't received the reset Email in either the Mail box or junk folder please Email support@w2globaldata.com

Direct Link to Forgotten Password: https://portal.w2globaldata.com/Account/ForgotPassword