Microsoft Surface Hub 2 SmCamera - Manual (Page 361)

Scroll through the interactive and non-interactive sign-in logs and note the Status
column. If any failures or interrupts are seen, select the sign-in for additional details. You
can optionally
filter the sign-in logs by status to only show failures and interrupts.
７ Note
The sign-in logs may take 5-10 minutes to propagate to Azure.
Analyze sign-in logs