6-digit verification code is not accepted - wrong code error

[GG166]

I am changing device and installed Dropbox on my new device. I need to enter a 6 digit verification code  which is sent to my mail.  However,  the code is not accepted.  I recente a message it is a wrong code, but it is exactly the same code as in the mail. 

How can I get access to Dropbox on my new device?

[Hannah · Accepted solution]

Sorry to hear about this, @GG166.

Are you currently on a Basic free account?

If so, is it possible that you already have 3 devices linked to your account and are trying to link a 4th one?

[GG166]

Thanks Hannah.  This was indeed the problem.  It's fixed now.