Wiser for KNX remote keeps asking for credentials

[mjaanes]

Trying to use "Wiser for KNX" remote app (version 3.1.49 for iOS - the newest Wiser Cloud app is not available in Norway yet).
It worked yesterday, but today, the app keeps asking me for "Controller password". 
I am 100% sure that I am entering the right credentials ("admin" + PASSWORD). 
I have even changed the password directly in the WEB UI ("Admin access") and tried numerous times, triple-checking CAPS LOCK.

I have "Remote connectivity" enabled.
Wiser is running latest FW 2.8
(As mentioned: It worked fine yesterday - both local and over 4G)

Happens both when using CLOUD CONTROL Login and LOCAL CONTROL (home network) login.

I feel so stupid. What am I missing out on here? Grateful for any hints.

Thanks in advance

See screendump below/attached.