Request:
When logging in, the OTP is not accepted for the own user or for different users.
Requirement:
Password protected with OTP.
Implementation:
In most cases, the cause is that a different time is active on the different devices when the OTP is created.
e.g. The phone and the PC have set contrasting times when creating the OTP.
For the calculation of the OTP the system clock time of the used device is necessary. If the system clock time on the devices is different, then the calculation works at separate times.
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