Device Authorization issue

[Amrendra_Kumar]

Hi Team,

We have a Marketo instance, which one of my colleague wants to use from Darmstadt.

But whenever he tries to login, he gets below error:

"There was a problem authorizing this device. Contact Marketo Support."

Earlier we thought it could be IP restriction issue but i cross verified and found that

IP Restrictions is in disabled mode.

Please help!

Thanks,

Pratibha