How to solve problem "Read access denied for stream" while reading events from event store?

Get this error on following line:
var event = connection.ReadStreamEventsForwardAsync(streamid, 0, 1, false).Result;

Need to add credential for reading
var event = connection.ReadStreamEventsForwardAsync(streamid, 0, 1, false,  new UserCredentials("admin", "changeit")).Result;