As others have suggested, OP should contact our support and we'll get this sorted out.
@gcu_greyarea:
Had the same happen on a 2440. Netgate was so kind to replace the unit, but never received an explanation as to what caused the issue.
My suspicion is C2000 bug, but I could be wrong ….
This sounds familiar to me, didn't we talk about this? If I remember correctly we had a new guy working in warehouse and he closed the ticket after issuing RMA (which is correct step however it also stops notifications in case you reply). That's the feedback I received when I investigated this. But I may be confusing you with someone else, so please pm me your ticket number or email address you used to contact our support and I'll figure this out!
Thanks!