Solve problems

Can I change my user name without requesting a new token?
I have lost my token. What should I do?
I have several personal tokens: which token should I use?
I still have a token on paper. Can I continue to use this?
My token will soon expire. What do I need to do to renew it?
What do I need to log in using a token?
When I log in with my token I can't manage all the digital keys. Why is this?
Why can't I log in with my token?
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