A seventh successive defeat was harsh on Reading but McDermott, whose side have accumulated just nine points from 18 games, is determined to battle on.
He said: "We have to take consolation from that, we have to take the positives because that is what you have to do. We have got to move on.
"I honestly thought we were going to get something. Even in the first half there were a couple of incidents where we might have got something on the break.
"I'm really disappointed for our fans today and really disappointed for the players because they didn't deserve that."