Why are the codes generated by my Mobile Authenticator app not being accepted for activation?

It is required to enter the activation code sent via SMS to enable IBKR Mobile Authentication (IB Key).

If you are not receiving the activation code via SMS please try the following:…

Please make sure that the entire operation of entering the codes during the login process does not exceed the code validity time window (30 seconds). Also, you should not use a code which is already about to expire but wait for a fresh one. If the code is nevertheless rejected, please check that your device internal clock is correct and automatically synced with the current time…

IBKR recommends clients change their PIN regularly to add an extra layer of security…

In general it is not possible to have multiple Mobile Authenticator apps generating valid codes at the same time for a given user. Every time you activate a user, a new QR code (and hence a new secret key) is generated and the last key will override all the previous ones. Therefore, only the last Mobile Authenticator app that you have activated, will generate valid codes for that user. The other apps will generate invalid codes, which will be rejected upon login…