Tank auth and reset password error

[eluser]Wonder Woman[/eluser]
Hi,

I'm using tank_auth and it's working great, however since I put my code live, the reset password doesn't work, I keep getting the error message "Your activation key is incorrect or expired. Please check your email again and follow the instructions." I have checked that the user_id and new_pass_key variables are passing the info and they are.

Could someone please help me out?

Thanks in advance!