Scanner disconnects from Scanner DB with connection timed out error

Issue

The customer's Scanner is disconnecting from their Scanner-DB with the Scanner logs showing

{"Event":"Updater failed","Level":"error","Location":"updater.go:141","Time":"2021-07-01 12:38:21.920147","error":"updating from vuln dump: error beginning vuln loading: determining whether to update: getting last update timestamp from DB: write tcp ...: write: connection timed out"}

and the Scanner DB logs showing

2021-07-01 13:34:24.075 UTC [783] LOG:  could not receive data from client: Connection reset by peer
2021-07-01 13:34:24.075 UTC [783] LOG:  unexpected EOF on client connection with an open transaction
2021-07-01 13:34:24.075 UTC [787] LOG:  could not receive data from client: Connection reset by peer