Barracuda Campus Help Center / Reference
Why do I see a "System currently undergoing maintenance" message when I try to log into my Barracuda unit's Web user interface?
Scope:
This solution applies to all Barracuda Networks products that display the "System currently undergoing maintenance" message upon attempts to access the Web user interface.
Answer:
This message normally appears during a firmware upgrade. If your Barracuda Networks product displays this message for longer than 15 minutes, please contact Barracuda Technical Support.
Link to This Page:
https://campus.barracuda.com/solution/50160000000GTHbAAO