CLose
It is relatively important to know about the concept of DPS Coding, it bounded with time frame (i.e. GMT Time in your server side) to provide you a dynamic coding. So, please check your tokens to match with your server time.
Check your computer system time
  The time icon is located on the right bottom corner of all Windows Desktop.
  Check your computer system time
  Check or adjust the time and date when it does not match with international timing.
  Check my country correct timing.
 
Check your GMT Time
  After you install the DPS software agent, the software will change your system time into GMT format after you specify
  your country time zone. Check my country time zone.
 
 
Check your token timing
  Press and holds the button which located at the back of the token for 5 seconds. It may display the time
  and date. Read the token user manual to know how to adjust time and date.
 
  If you still have problems, please contact the reseller in your country or email to support@dps-worldwide.com