Aurion IdB Connection timing out

My Aurion connectors are giving errors - I suspect a network / timeout issue. Is that just a matter of increasing the timeout for the agent (or getting a better network)?

Change detection engine import all items failed.

Change detection engine import all items for connector XXXXXX Security failed with reason Unable to connect to the remote server. Duration: 00:00:21.0082077

Error details:

System.Net.WebException: Unable to connect to the remote server ---> System.Net.Sockets.SocketException: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond xxx.xxx.xxx.xxx:443

at System.Net.Sockets.Socket.DoConnect(EndPoint endPointSnapshot, SocketAddress socketAddress)

at System.Net.ServicePoint.ConnectSocketInternal(Boolean connectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncResult, Exception& exception)

--- End of inner exception stack trace ---