WordPress two way authentiction problem

For last two days I was locked out of WordPress on my mobile and other devices after I enabled two-way authentication, as was suggested by its message on Dashboard. Perhaps it has some bug there. Only today when I logged in from usual machine, it asked for ‘Google Validator’ code and there was no problem in logging in. At first opportunity, I have disabled the feature because as stated above, none of mobile devices were able to log in for last two days.
It appears that while two way aauthentication is a good feature and now a standard feature used on credit cards but on word-press it still need to be fine tuned so as not to disable mobile devices.
BTW, I had used the ‘Google Validator’ for the first time and it looked like magic. Randomly generating number after number. Let’s see and watch, how things pan out.