Is there anyone who help me to troubleshoot 2FA login into the NetSuite ....i am using google authenticator app to login using verification codes but it always says invalid verification code.... kindly help me on this... or anyone else is facing the same issue thanks in advance

It may benefit you to reset the 2FA of that particular user. You can navigate to Setup -> Users / Roles -> User Access Reset Tool Here you can enter the email address of the user and select Reset 2FA settings. This will prompt the user to reinitiate the 2FA authentication once they enter their password.