I have a number of reports which have multiple queries in but when I refresh some of them the query stops running after 220 seconds and states that it is diconnecting.
I have looked in the universe at the connection and it states that it’s connection is to stay open for the whole session.
Do you get partial results warning? If yes then it can be caused by a universe parameter “limit execution time to”. It’s in universe parameters, tab Controls.
If you do not get the partial results warning then it’s possible that the connection to the database is disconnected on a database side. Can you check with your DBA whether there is any automatic disconnection after some period of time?