Dyer told the Evening Chronicle: “There are no excuses. We let ourselves and everyone associated with the club down.
“We twice had a three-goal lead in this tie and we have blown it again.
“It is like Groundhog Day. It always seems to happen to us and now it is another season with nothing to play for.
“We have got to get tougher mentally or we are going to get punished the way we always seem to do.
“It is another disappointing end to what should have been a promising night.”
He added: “We huffed and puffed a bit at the end and maybe I should have scored and so should Oba Martins.
“My first touch was good and I thought I had scored. I could only watch as it went agonisingly wide.
“But I suppose that summed up our night. We were second best on the night. There was not a lot of quality out there and we were made to pay.
“While we still have to try to win as many points as we can and climb up the league table, this will take a long time to get out of our system.”