There is no option to reset it in current version unfortunately.
If you have cron job configured login attempts are cleared each time cron runs (supposed to be daily)
For now you can use one of following sql queries - you need Aвmin Panel >Database page to executes them:
to delete all login attempts for all users
Code:
Only registered members can view the code.
to delete all login attempts for specific user by ip dont forget to replace 127.0.0.1 with the right ip
Code:
Only registered members can view the code.
to delete all login attempts for specific user by username
Code:
Only registered members can view the code.