Once WatchGuard AuthPoint (or similar) has been downloaded and run, every time you need to sign in to your Panda security solution's web console, you'll have to enter your login credentials and then the code generated by WatchGuard AuthPoint on your mobile device.
Bear in mind that each code will only remain valid for 30 seconds, so make sure to enter it before it times out.
If you fail to enter the code in time, a new code will be generated every 30 seconds.
Related topic
How does 2-Step Verification work?