During the fail over data engine not be able to make a connection due to which database got disconnected and data engine went to red state. how to prevent and ensure the issue will not reoccurred.
UIM 20.CU8
As a prevention and ensure the issue will not reoccur, we have recommended to enable Always on Availability Group associated check points from SQL Server probe which will let them know the replicate state and accordingly alert whether it is primary or secondary.