"Couldn't send passcode"

[wpyszczymuka]

We had an end-user recently receive the error

"Duo was unable to send a passcode in a text to "Mobile" (phone number). Please try another way to login."

I was unable to find a related support article or conversation for this error. There is currently a service degradation for SMS for deployments, including ours.  We have had no other reports and are unable to replicate the issue.

So, just for a point of clarification, would this error be tied to Duo SMS gateway issues, or is this error something else?

Thank you!

[DuoKristina]

It's a non-specific error that could be related to SMS gateway issues or other issues affecting delivery, like a transient issue with the device or carrier. I suggest you open a case with Duo Support if you want specifics for the affected user/number and your account.